2156013520499 has 2 divisors, whose sum is σ = 2156013520500. Its totient is φ = 2156013520498.

The previous prime is 2156013520489. The next prime is 2156013520589. The reversal of 2156013520499 is 9940253106512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2156013520499 - 2²⁰ = 2156012471923 is a prime.

It is not a weakly prime, because it can be changed into another prime (2156013520469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078006760249 + 1078006760250.

It is an arithmetic number, because the mean of its divisors is an integer number (1078006760250).

Almost surely, 2^{2156013520499} is an apocalyptic number.

2156013520499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2156013520499 is an equidigital number, since it uses as much as digits as its factorization.

2156013520499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 2156013520499 in words is "two trillion, one hundred fifty-six billion, thirteen million, five hundred twenty thousand, four hundred ninety-nine".