2151024362656 has 48 divisors (see below), whose sum is σ = 4560884914824. Its totient is φ = 992715254784.

The previous prime is 2151024362633. The next prime is 2151024362713. The reversal of 2151024362656 is 6562634201512.

It can be written as a sum of positive squares in 4 ways, for example, as 2015025674256 + 135998688400 = 1419516^2 + 368780^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6482910 + ... + 6806626.

Almost surely, 2^{2151024362656} is an apocalyptic number.

2151024362656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2151024362656 is an abundant number, since it is smaller than the sum of its proper divisors (2409860552168).

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

2151024362656 is a wasteful number, since it uses less digits than its factorization.

2151024362656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339713 (or 339705 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 2151024362656 in words is "two trillion, one hundred fifty-one billion, twenty-four million, three hundred sixty-two thousand, six hundred fifty-six".