13087952661 has 16 divisors (see below), whose sum is σ = 20270492288. Its totient is φ = 7356225600.

The previous prime is 13087952623. The next prime is 13087952671. The reversal of 13087952661 is 16625978031.

It is not a de Polignac number, because 13087952661 - 2⁶ = 13087952597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13087952661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087952671) 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, 5107210 + ... + 5109771.

It is an arithmetic number, because the mean of its divisors is an integer number (1266905768).

Almost surely, 2^13087952661 is an apocalyptic number.

It is an amenable number.

13087952661 is a deficient number, since it is larger than the sum of its proper divisors (7182539627).

13087952661 is a wasteful number, since it uses less digits than its factorization.

13087952661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217052.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 13087952661 in words is "thirteen billion, eighty-seven million, nine hundred fifty-two thousand, six hundred sixty-one".