12365604477 has 16 divisors (see below), whose sum is σ = 18910364160. Its totient is φ = 7977808800.

The previous prime is 12365604467. The next prime is 12365604541. The reversal of 12365604477 is 77440656321.

12365604477 is a `hidden beast` number, since 1 + 2 + 36 + 5 + 604 + 4 + 7 + 7 = 666.

It is not a de Polignac number, because 12365604477 - 2¹¹ = 12365602429 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12365604467) 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, 7386024 + ... + 7387697.

It is an arithmetic number, because the mean of its divisors is an integer number (1181897760).

Almost surely, 2^12365604477 is an apocalyptic number.

It is an amenable number.

12365604477 is a deficient number, since it is larger than the sum of its proper divisors (6544759683).

12365604477 is a wasteful number, since it uses less digits than its factorization.

12365604477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14773761 (or 14773755 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 12365604477 in words is "twelve billion, three hundred sixty-five million, six hundred four thousand, four hundred seventy-seven".