45020534640 has 80 divisors (see below), whose sum is σ = 141245209728. Its totient is φ = 11860826368.

The previous prime is 45020534639. The next prime is 45020534653. The reversal of 45020534640 is 4643502054.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110114 + ... + 1149953.

Almost surely, 2^45020534640 is an apocalyptic number.

45020534640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45020534640 is an abundant number, since it is smaller than the sum of its proper divisors (96224675088).

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

45020534640 is a wasteful number, since it uses less digits than its factorization.

45020534640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260166 (or 2260160 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The spelling of 45020534640 in words is "forty-five billion, twenty million, five hundred thirty-four thousand, six hundred forty".