2156161635026 has 48 divisors (see below), whose sum is σ = 3822594990912. Its totient is φ = 909369972000.

The previous prime is 2156161635007. The next prime is 2156161635049. The reversal of 2156161635026 is 6205361616512.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 902516 + ... + 2264256.

It is an arithmetic number, because the mean of its divisors is an integer number (79637395644).

Almost surely, 2^{2156161635026} is an apocalyptic number.

2156161635026 is a deficient number, since it is larger than the sum of its proper divisors (1666433355886).

2156161635026 is a wasteful number, since it uses less digits than its factorization.

2156161635026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362015 (or 1362008 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 2156161635026 in words is "two trillion, one hundred fifty-six billion, one hundred sixty-one million, six hundred thirty-five thousand, twenty-six".