15516565106061 has 8 divisors (see below), whose sum is σ = 20689119944640. Its totient is φ = 10344193502432.

The previous prime is 15516565106041. The next prime is 15516565106083. The reversal of 15516565106061 is 16060156561551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15516565106061 - 2⁷ = 15516565105933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15516565106061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15516565106041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45611025 + ... + 45949958.

It is an arithmetic number, because the mean of its divisors is an integer number (2586139993080).

Almost surely, 2^{15516565106061} is an apocalyptic number.

It is an amenable number.

15516565106061 is a deficient number, since it is larger than the sum of its proper divisors (5172554838579).

15516565106061 is an equidigital number, since it uses as much as digits as its factorization.

15516565106061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91617475.

The product of its (nonzero) digits is 810000, while the sum is 48.

The spelling of 15516565106061 in words is "fifteen trillion, five hundred sixteen billion, five hundred sixty-five million, one hundred six thousand, sixty-one".