64560103933 has 18 divisors (see below), whose sum is σ = 73397925594. Its totient is φ = 56442197088.

The previous prime is 64560103913. The next prime is 64560103963. The reversal of 64560103933 is 33930106546.

It can be written as a sum of positive squares in 3 ways, for example, as 144648729 + 64415455204 = 12027^2 + 253802^2 .

It is not a de Polignac number, because 64560103933 - 2³³ = 55970169341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64560103913) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17404483 + ... + 17408191.

It is an arithmetic number, because the mean of its divisors is an integer number (4077662533).

Almost surely, 2^64560103933 is an apocalyptic number.

It is an amenable number.

64560103933 is a deficient number, since it is larger than the sum of its proper divisors (8837821661).

64560103933 is an frugal number, since it uses more digits than its factorization.

64560103933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7469 (or 3741 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 40.

The spelling of 64560103933 in words is "sixty-four billion, five hundred sixty million, one hundred three thousand, nine hundred thirty-three".