3645104006672 has 40 divisors (see below), whose sum is σ = 7067798553816. Its totient is φ = 1821156397056.

The previous prime is 3645104006633. The next prime is 3645104006689. The reversal of 3645104006672 is 2766004015463.

It can be written as a sum of positive squares in 4 ways, for example, as 64849678336 + 3580254328336 = 254656^2 + 1892156^2 .

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, 262665398 + ... + 262679274.

Almost surely, 2^{3645104006672} is an apocalyptic number.

It is an amenable number.

3645104006672 is a deficient number, since it is larger than the sum of its proper divisors (3422694547144).

3645104006672 is a wasteful number, since it uses less digits than its factorization.

3645104006672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25275 (or 25269 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 3645104006672 in words is "three trillion, six hundred forty-five billion, one hundred four million, six thousand, six hundred seventy-two".