45507180640 has 24 divisors (see below), whose sum is σ = 107510714640. Its totient is φ = 18202872192.

The previous prime is 45507180629. The next prime is 45507180647. The reversal of 45507180640 is 4608170554.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 45507180593 and 45507180602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45507180647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142209780 + ... + 142210099.

It is an arithmetic number, because the mean of its divisors is an integer number (4479613110).

Almost surely, 2^45507180640 is an apocalyptic number.

45507180640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45507180640 is an abundant number, since it is smaller than the sum of its proper divisors (62003534000).

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

45507180640 is a wasteful number, since it uses less digits than its factorization.

45507180640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284419894 (or 284419886 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 45507180640 in words is "forty-five billion, five hundred seven million, one hundred eighty thousand, six hundred forty".