67145341536 has 864 divisors, whose sum is σ = 254983292928. Its totient is φ = 16310937600.

The previous prime is 67145341519. The next prime is 67145341573. The reversal of 67145341536 is 63514354176.

67145341536 is a `hidden beast` number, since 6 + 71 + 4 + 5 + 3 + 41 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 67145341491 and 67145341500.

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, 444671061 + ... + 444671211.

It is an arithmetic number, because the mean of its divisors is an integer number (295119552).

Almost surely, 2^67145341536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67145341536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127491646464).

67145341536 is an abundant number, since it is smaller than the sum of its proper divisors (187837951392).

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

67145341536 is a wasteful number, since it uses less digits than its factorization.

67145341536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 242 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 67145341536 in words is "sixty-seven billion, one hundred forty-five million, three hundred forty-one thousand, five hundred thirty-six".