14814977661 has 48 divisors (see below), whose sum is σ = 23632232832. Its totient is φ = 8868787200.

The previous prime is 14814977633. The next prime is 14814977687. The reversal of 14814977661 is 16677941841.

14814977661 is a `hidden beast` number, since 1 + 4 + 81 + 497 + 76 + 6 + 1 = 666.

It is not a de Polignac number, because 14814977661 - 2¹⁷ = 14814846589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14814977598 and 14814977607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14814977161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3499416 + ... + 3503646.

It is an arithmetic number, because the mean of its divisors is an integer number (492338184).

Almost surely, 2^14814977661 is an apocalyptic number.

14814977661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14814977661 is a deficient number, since it is larger than the sum of its proper divisors (8817255171).

14814977661 is a wasteful number, since it uses less digits than its factorization.

14814977661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674 (or 4671 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The spelling of 14814977661 in words is "fourteen billion, eight hundred fourteen million, nine hundred seventy-seven thousand, six hundred sixty-one".