3866456155272 has 32 divisors (see below), whose sum is σ = 9691378375680. Its totient is φ = 1285453653440.

The previous prime is 3866456155267. The next prime is 3866456155291. The reversal of 3866456155272 is 2725516546683.

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, 210307179 + ... + 210325562.

It is an arithmetic number, because the mean of its divisors is an integer number (302855574240).

Almost surely, 2^{3866456155272} is an apocalyptic number.

It is an amenable number.

3866456155272 is an abundant number, since it is smaller than the sum of its proper divisors (5824922220408).

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

3866456155272 is a wasteful number, since it uses less digits than its factorization.

3866456155272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420633133 (or 420633129 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 60.

The spelling of 3866456155272 in words is "three trillion, eight hundred sixty-six billion, four hundred fifty-six million, one hundred fifty-five thousand, two hundred seventy-two".