67222173240 has 256 divisors, whose sum is σ = 228299673600. Its totient is φ = 17589312000.

The previous prime is 67222173233. The next prime is 67222173251. The reversal of 67222173240 is 4237122276.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 67222173195 and 67222173204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34454265 + ... + 34456215.

It is an arithmetic number, because the mean of its divisors is an integer number (891795600).

Almost surely, 2^67222173240 is an apocalyptic number.

67222173240 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 67222173240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114149836800).

67222173240 is an abundant number, since it is smaller than the sum of its proper divisors (161077500360).

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

67222173240 is a wasteful number, since it uses less digits than its factorization.

67222173240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The spelling of 67222173240 in words is "sixty-seven billion, two hundred twenty-two million, one hundred seventy-three thousand, two hundred forty".