15616240661411 has 16 divisors (see below), whose sum is σ = 17363323665408. Its totient is φ = 13952670681600.

The previous prime is 15616240661407. The next prime is 15616240661443. The reversal of 15616240661411 is 11416604261651.

It is a cyclic number.

It is not a de Polignac number, because 15616240661411 - 2² = 15616240661407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15616240661311) 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, 115281770 + ... + 115417151.

It is an arithmetic number, because the mean of its divisors is an integer number (1085207729088).

Almost surely, 2^{15616240661411} is an apocalyptic number.

15616240661411 is a deficient number, since it is larger than the sum of its proper divisors (1747083003997).

15616240661411 is a wasteful number, since it uses less digits than its factorization.

15616240661411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230699102.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 15616240661411 in words is "fifteen trillion, six hundred sixteen billion, two hundred forty million, six hundred sixty-one thousand, four hundred eleven".