352721956816 has 10 divisors (see below), whose sum is σ = 683398791362. Its totient is φ = 176360978400.

The previous prime is 352721956799. The next prime is 352721956841. The reversal of 352721956816 is 618659127253.

It can be written as a sum of positive squares in only one way, i.e., 349730304400 + 2991652416 = 591380^2 + 54696^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11022561135 + ... + 11022561166.

Almost surely, 2^352721956816 is an apocalyptic number.

It is an amenable number.

352721956816 is a deficient number, since it is larger than the sum of its proper divisors (330676834546).

352721956816 is a wasteful number, since it uses less digits than its factorization.

352721956816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22045122309 (or 22045122303 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 55.

The spelling of 352721956816 in words is "three hundred fifty-two billion, seven hundred twenty-one million, nine hundred fifty-six thousand, eight hundred sixteen".