156668896 has 24 divisors (see below), whose sum is σ = 310068864. Its totient is φ = 77921280.

The previous prime is 156668867. The next prime is 156668899. The reversal of 156668896 is 698866651.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156668899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6705 + ... + 18928.

It is an arithmetic number, because the mean of its divisors is an integer number (12919536).

Almost surely, 2^156668896 is an apocalyptic number.

156668896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

156668896 is a deficient number, since it is larger than the sum of its proper divisors (153399968).

156668896 is a wasteful number, since it uses less digits than its factorization.

156668896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25834 (or 25826 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 55.

The square root of 156668896 is about 12516.7446247017. The cubic root of 156668896 is about 539.0895678535.

It can be divided in two parts, 15 and 6668896, that multiplied together give a triangular number (100033440 = T₁₄₁₄₄).

The spelling of 156668896 in words is "one hundred fifty-six million, six hundred sixty-eight thousand, eight hundred ninety-six".