68161056 has 48 divisors (see below), whose sum is σ = 188344800. Its totient is φ = 21523968.

The previous prime is 68161019. The next prime is 68161057. The reversal of 68161056 is 65016186.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (68161057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16861 + ... + 20508.

It is an arithmetic number, because the mean of its divisors is an integer number (3923850).

Almost surely, 2^68161056 is an apocalyptic number.

It is an amenable number.

68161056 is an abundant number, since it is smaller than the sum of its proper divisors (120183744).

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

68161056 is a wasteful number, since it uses less digits than its factorization.

68161056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37401 (or 37393 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 68161056 is about 8255.9709301814. The cubic root of 68161056 is about 408.4874987872.

The spelling of 68161056 in words is "sixty-eight million, one hundred sixty-one thousand, fifty-six".