3871664332272 has 120 divisors (see below), whose sum is σ = 11821102673328. Its totient is φ = 1173152793600.

The previous prime is 3871664332271. The next prime is 3871664332273. The reversal of 3871664332272 is 2722334661783.

3871664332272 is a `hidden beast` number, since 3 + 87 + 1 + 66 + 433 + 2 + 2 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (3871664332271) and next prime (3871664332273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871664332271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26146122 + ... + 26293782.

Almost surely, 2^{3871664332272} is an apocalyptic number.

It is an amenable number.

3871664332272 is an abundant number, since it is smaller than the sum of its proper divisors (7949438341056).

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

3871664332272 is a wasteful number, since it uses less digits than its factorization.

3871664332272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164239 (or 164230 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 54.

The spelling of 3871664332272 in words is "three trillion, eight hundred seventy-one billion, six hundred sixty-four million, three hundred thirty-two thousand, two hundred seventy-two".