45221369520 has 160 divisors (see below), whose sum is σ = 156244999680. Its totient is φ = 10752307200.

The previous prime is 45221369509. The next prime is 45221369533. The reversal of 45221369520 is 2596312254.

45221369520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×45221369520² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214156 + ... + 369195.

It is an arithmetic number, because the mean of its divisors is an integer number (976531248).

Almost surely, 2^45221369520 is an apocalyptic number.

45221369520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45221369520 is an abundant number, since it is smaller than the sum of its proper divisors (111023630160).

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

45221369520 is a wasteful number, since it uses less digits than its factorization.

45221369520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583403 (or 583397 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 45221369520 in words is "forty-five billion, two hundred twenty-one million, three hundred sixty-nine thousand, five hundred twenty".