45991643560 has 32 divisors (see below), whose sum is σ = 104643916200. Its totient is φ = 18189952000.

The previous prime is 45991643543. The next prime is 45991643573. The reversal of 45991643560 is 6534619954.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21866719876 + 24124923684 = 147874^2 + 155322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45991643498 and 45991643507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6455941 + ... + 6463060.

Almost surely, 2^45991643560 is an apocalyptic number.

45991643560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45991643560 is an abundant number, since it is smaller than the sum of its proper divisors (58652272640).

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

45991643560 is a wasteful number, since it uses less digits than its factorization.

45991643560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12919101 (or 12919097 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 45991643560 in words is "forty-five billion, nine hundred ninety-one million, six hundred forty-three thousand, five hundred sixty".