68455156 has 36 divisors (see below), whose sum is σ = 152028576. Its totient is φ = 26670000.

The previous prime is 68455133. The next prime is 68455169. The reversal of 68455156 is 65155486.

It is a super-2 number, since 2×68455156² = 9372216765968672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13720 + ... + 18031.

It is an arithmetic number, because the mean of its divisors is an integer number (4223016).

Almost surely, 2^68455156 is an apocalyptic number.

It is an amenable number.

68455156 is an abundant number, since it is smaller than the sum of its proper divisors (83573420).

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

68455156 is a wasteful number, since it uses less digits than its factorization.

68455156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31780 (or 31771 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The square root of 68455156 is about 8273.7631099760. The cubic root of 68455156 is about 409.0741671203.

The spelling of 68455156 in words is "sixty-eight million, four hundred fifty-five thousand, one hundred fifty-six".