45205720670 has 32 divisors (see below), whose sum is σ = 88844967936. Its totient is φ = 16424116000.

The previous prime is 45205720669. The next prime is 45205720709. The reversal of 45205720670 is 7602750254.

It is a happy number.

45205720670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 51914 + ... + 305133.

It is an arithmetic number, because the mean of its divisors is an integer number (2776405248).

Almost surely, 2^45205720670 is an apocalyptic number.

45205720670 is a deficient number, since it is larger than the sum of its proper divisors (43639247266).

45205720670 is a wasteful number, since it uses less digits than its factorization.

45205720670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358216.

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 45205720670 in words is "forty-five billion, two hundred five million, seven hundred twenty thousand, six hundred seventy".