64151556013545 has 256 divisors, whose sum is σ = 142291073433600. Its totient is φ = 23810410598400.

The previous prime is 64151556013543. The next prime is 64151556013579. The reversal of 64151556013545 is 54531065515146.

It is not a de Polignac number, because 64151556013545 - 2¹ = 64151556013543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64151556013543) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2530720531 + ... + 2530745879.

It is an arithmetic number, because the mean of its divisors is an integer number (555824505600).

Almost surely, 2^{64151556013545} is an apocalyptic number.

64151556013545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64151556013545 is an abundant number, since it is smaller than the sum of its proper divisors (78139517420055).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64151556013545 is a wasteful number, since it uses less digits than its factorization.

64151556013545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30856.

The product of its (nonzero) digits is 5400000, while the sum is 51.

The spelling of 64151556013545 in words is "sixty-four trillion, one hundred fifty-one billion, five hundred fifty-six million, thirteen thousand, five hundred forty-five".