64615167523051 has 2 divisors, whose sum is σ = 64615167523052. Its totient is φ = 64615167523050.

The previous prime is 64615167523043. The next prime is 64615167523079. The reversal of 64615167523051 is 15032576151646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64615167523051 - 2³ = 64615167523043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64615167523051.

It is not a weakly prime, because it can be changed into another prime (64615167523451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32307583761525 + 32307583761526.

It is an arithmetic number, because the mean of its divisors is an integer number (32307583761526).

Almost surely, 2^{64615167523051} is an apocalyptic number.

64615167523051 is a deficient number, since it is larger than the sum of its proper divisors (1).

64615167523051 is an equidigital number, since it uses as much as digits as its factorization.

64615167523051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 64615167523051 in words is "sixty-four trillion, six hundred fifteen billion, one hundred sixty-seven million, five hundred twenty-three thousand, fifty-one".