45640121564 has 6 divisors (see below), whose sum is σ = 79870212744. Its totient is φ = 22820060780.

The previous prime is 45640121543. The next prime is 45640121567. The reversal of 45640121564 is 46512104654.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45640121567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5705015192 + ... + 5705015199.

It is an arithmetic number, because the mean of its divisors is an integer number (13311702124).

Almost surely, 2^45640121564 is an apocalyptic number.

It is an amenable number.

45640121564 is a deficient number, since it is larger than the sum of its proper divisors (34230091180).

45640121564 is a wasteful number, since it uses less digits than its factorization.

45640121564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410030395 (or 11410030393 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 45640121564 in words is "forty-five billion, six hundred forty million, one hundred twenty-one thousand, five hundred sixty-four".