2172651415352 has 64 divisors (see below), whose sum is σ = 4489996752000. Its totient is φ = 977369040000.

The previous prime is 2172651415349. The next prime is 2172651415421. The reversal of 2172651415352 is 2535141562712.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 21021899 + ... + 21124997.

It is an arithmetic number, because the mean of its divisors is an integer number (70156199250).

Almost surely, 2^{2172651415352} is an apocalyptic number.

2172651415352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2172651415352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244998376000).

2172651415352 is an abundant number, since it is smaller than the sum of its proper divisors (2317345336648).

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

2172651415352 is a wasteful number, since it uses less digits than its factorization.

2172651415352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105588 (or 105584 counting only the distinct ones).

The product of its digits is 504000, while the sum is 44.

The spelling of 2172651415352 in words is "two trillion, one hundred seventy-two billion, six hundred fifty-one million, four hundred fifteen thousand, three hundred fifty-two".