151503021656 has 16 divisors (see below), whose sum is σ = 324649332240. Its totient is φ = 64929866400.

The previous prime is 151503021653. The next prime is 151503021679. The reversal of 151503021656 is 656120305151.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151503021653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352705495 + ... + 1352705606.

It is an arithmetic number, because the mean of its divisors is an integer number (20290583265).

Almost surely, 2^151503021656 is an apocalyptic number.

It is an amenable number.

151503021656 is an abundant number, since it is smaller than the sum of its proper divisors (173146310584).

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

151503021656 is a wasteful number, since it uses less digits than its factorization.

151503021656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705411114 (or 2705411110 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 151503021656 in words is "one hundred fifty-one billion, five hundred three million, twenty-one thousand, six hundred fifty-six".