68037156 has 36 divisors (see below), whose sum is σ = 187618704. Its totient is φ = 20617200.

The previous prime is 68037149. The next prime is 68037169. The reversal of 68037156 is 65173086.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 68037156.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85510 + ... + 86301.

Almost surely, 2^68037156 is an apocalyptic number.

68037156 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

68037156 is an abundant number, since it is smaller than the sum of its proper divisors (119581548).

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

68037156 is a wasteful number, since it uses less digits than its factorization.

68037156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171832 (or 171827 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 68037156 is about 8248.4638569857. The cubic root of 68037156 is about 408.2398388009.

The spelling of 68037156 in words is "sixty-eight million, thirty-seven thousand, one hundred fifty-six".