14987795661 has 16 divisors (see below), whose sum is σ = 22332496320. Its totient is φ = 9934104240.

The previous prime is 14987795621. The next prime is 14987795701. The reversal of 14987795661 is 16659778941.

It is an interprime number because it is at equal distance from previous prime (14987795621) and next prime (14987795701).

It is not a de Polignac number, because 14987795661 - 2⁶ = 14987795597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14987795611) 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, 1599675 + ... + 1609016.

It is an arithmetic number, because the mean of its divisors is an integer number (1395781020).

Almost surely, 2^14987795661 is an apocalyptic number.

It is an amenable number.

14987795661 is a deficient number, since it is larger than the sum of its proper divisors (7344700659).

14987795661 is a wasteful number, since it uses less digits than its factorization.

14987795661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208873 (or 3208867 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The spelling of 14987795661 in words is "fourteen billion, nine hundred eighty-seven million, seven hundred ninety-five thousand, six hundred sixty-one".