64155166046253 has 48 divisors (see below), whose sum is σ = 97796993329152. Its totient is φ = 40466724768000.

The previous prime is 64155166046249. The next prime is 64155166046291. The reversal of 64155166046253 is 35264066155146.

64155166046253 is a `hidden beast` number, since 6 + 4 + 1 + 5 + 5 + 1 + 6 + 6 + 0 + 4 + 625 + 3 = 666.

It is not a de Polignac number, because 64155166046253 - 2² = 64155166046249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64155166046253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64155166046203) 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, 9739713 + ... + 14938953.

It is an arithmetic number, because the mean of its divisors is an integer number (2037437361024).

Almost surely, 2^{64155166046253} is an apocalyptic number.

It is an amenable number.

64155166046253 is a deficient number, since it is larger than the sum of its proper divisors (33641827282899).

64155166046253 is a wasteful number, since it uses less digits than its factorization.

64155166046253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200266 (or 5200263 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 64155166046253 in words is "sixty-four trillion, one hundred fifty-five billion, one hundred sixty-six million, forty-six thousand, two hundred fifty-three".