152965221656 has 64 divisors (see below), whose sum is σ = 312458731200. Its totient is φ = 69781413888.

The previous prime is 152965221589. The next prime is 152965221683. The reversal of 152965221656 is 656122569251.

It is a super-2 number, since 2×152965221656² (a number of 23 digits) contains 22 as substring.

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, 8151821 + ... + 8170563.

It is an arithmetic number, because the mean of its divisors is an integer number (4882167675).

Almost surely, 2^152965221656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 152965221656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156229365600).

152965221656 is an abundant number, since it is smaller than the sum of its proper divisors (159493509544).

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

152965221656 is a wasteful number, since it uses less digits than its factorization.

152965221656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19668 (or 19664 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 50.

The spelling of 152965221656 in words is "one hundred fifty-two billion, nine hundred sixty-five million, two hundred twenty-one thousand, six hundred fifty-six".