2115660156741 has 16 divisors (see below), whose sum is σ = 3137985833920. Its totient is φ = 1408786583760.

The previous prime is 2115660156721. The next prime is 2115660156763. The reversal of 2115660156741 is 1476510665112.

2115660156741 is a `hidden beast` number, since 2 + 1 + 1 + 566 + 0 + 15 + 6 + 74 + 1 = 666.

It is not a de Polignac number, because 2115660156741 - 2³⁷ = 1978221203269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115660156721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45907675 + ... + 45953736.

It is an arithmetic number, because the mean of its divisors is an integer number (196124114620).

Almost surely, 2^{2115660156741} is an apocalyptic number.

It is an amenable number.

2115660156741 is a deficient number, since it is larger than the sum of its proper divisors (1022325677179).

2115660156741 is an equidigital number, since it uses as much as digits as its factorization.

2115660156741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91862273 (or 91862267 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 2115660156741 in words is "two trillion, one hundred fifteen billion, six hundred sixty million, one hundred fifty-six thousand, seven hundred forty-one".