67041685620 has 432 divisors, whose sum is σ = 258683967360. Its totient is φ = 13685552640.

The previous prime is 67041685597. The next prime is 67041685643. The reversal of 67041685620 is 2658614076.

67041685620 is a `hidden beast` number, since 6 + 7 + 0 + 4 + 16 + 8 + 5 + 620 = 666.

It is an interprime number because it is at equal distance from previous prime (67041685597) and next prime (67041685643).

It is a super-2 number, since 2×67041685620² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15739051 + ... + 15743309.

It is an arithmetic number, because the mean of its divisors is an integer number (598805480).

Almost surely, 2^67041685620 is an apocalyptic number.

67041685620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67041685620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129341983680).

67041685620 is an abundant number, since it is smaller than the sum of its proper divisors (191642281740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67041685620 is a wasteful number, since it uses less digits than its factorization.

67041685620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356 (or 4320 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 67041685620 in words is "sixty-seven billion, forty-one million, six hundred eighty-five thousand, six hundred twenty".