68120556 has 48 divisors (see below), whose sum is σ = 182112000. Its totient is φ = 19414080.

The previous prime is 68120527. The next prime is 68120597. The reversal of 68120556 is 65502186.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44695 + ... + 46193.

It is an arithmetic number, because the mean of its divisors is an integer number (3794000).

Almost surely, 2^68120556 is an apocalyptic number.

It is an amenable number.

68120556 is an abundant number, since it is smaller than the sum of its proper divisors (113991444).

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

68120556 is a wasteful number, since it uses less digits than its factorization.

68120556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054 (or 2052 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 68120556 is about 8253.5177954615. The cubic root of 68120556 is about 408.4065775965.

The spelling of 68120556 in words is "sixty-eight million, one hundred twenty thousand, five hundred fifty-six".