156205897568 has 96 divisors (see below), whose sum is σ = 356866030080. Its totient is φ = 65919329280.

The previous prime is 156205897543. The next prime is 156205897591. The reversal of 156205897568 is 865798502651.

It is a self number, because there is not a number n which added to its sum of digits gives 156205897568.

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, 10310543 + ... + 10325681.

It is an arithmetic number, because the mean of its divisors is an integer number (3717354480).

Almost surely, 2^156205897568 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 156205897568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178433015040).

156205897568 is an abundant number, since it is smaller than the sum of its proper divisors (200660132512).

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

156205897568 is a wasteful number, since it uses less digits than its factorization.

156205897568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15860 (or 15852 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 62.

The spelling of 156205897568 in words is "one hundred fifty-six billion, two hundred five million, eight hundred ninety-seven thousand, five hundred sixty-eight".