12657153777905 has 64 divisors (see below), whose sum is σ = 18887198453760. Its totient is φ = 7928708011776.

The previous prime is 12657153777893. The next prime is 12657153777953. The reversal of 12657153777905 is 50977735175621.

12657153777905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12657153777905 - 2⁴ = 12657153777889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73914314 + ... + 74085356.

It is an arithmetic number, because the mean of its divisors is an integer number (295112475840).

Almost surely, 2^{12657153777905} is an apocalyptic number.

It is an amenable number.

12657153777905 is a deficient number, since it is larger than the sum of its proper divisors (6230044675855).

12657153777905 is a wasteful number, since it uses less digits than its factorization.

12657153777905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172750.

The product of its (nonzero) digits is 97240500, while the sum is 65.

The spelling of 12657153777905 in words is "twelve trillion, six hundred fifty-seven billion, one hundred fifty-three million, seven hundred seventy-seven thousand, nine hundred five".