3665172612 has 48 divisors (see below), whose sum is σ = 8853772032. Its totient is φ = 1179336960.

The previous prime is 3665172607. The next prime is 3665172649. The reversal of 3665172612 is 2162715663.

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, 3339 + ... + 85682.

It is an arithmetic number, because the mean of its divisors is an integer number (184453584).

Almost surely, 2^3665172612 is an apocalyptic number.

It is an amenable number.

3665172612 is an abundant number, since it is smaller than the sum of its proper divisors (5188599420).

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

3665172612 is a wasteful number, since it uses less digits than its factorization.

3665172612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89148 (or 89146 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 3665172612 is about 60540.6690745981. The cubic root of 3665172612 is about 1541.8121990311.

The spelling of 3665172612 in words is "three billion, six hundred sixty-five million, one hundred seventy-two thousand, six hundred twelve".