2156872830060 has 96 divisors (see below), whose sum is σ = 6505251625152. Its totient is φ = 530804136960.

The previous prime is 2156872829983. The next prime is 2156872830139. The reversal of 2156872830060 is 600382786512.

It is a junction number, because it is equal to n+sod(n) for n = 2156872829991 and 2156872830009.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3217170 + ... + 3829350.

It is an arithmetic number, because the mean of its divisors is an integer number (67763037762).

Almost surely, 2^{2156872830060} is an apocalyptic number.

2156872830060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2156872830060 is an abundant number, since it is smaller than the sum of its proper divisors (4348378795092).

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

2156872830060 is a wasteful number, since it uses less digits than its factorization.

2156872830060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616723 (or 616721 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 2156872830060 in words is "two trillion, one hundred fifty-six billion, eight hundred seventy-two million, eight hundred thirty thousand, sixty".