157216555648 has 64 divisors (see below), whose sum is σ = 316267499520. Its totient is φ = 77843358720.

The previous prime is 157216555603. The next prime is 157216555673. The reversal of 157216555648 is 846555612751.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5437486 + ... + 5466322.

It is an arithmetic number, because the mean of its divisors is an integer number (4941679680).

Almost surely, 2^157216555648 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 157216555648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158133749760).

157216555648 is an abundant number, since it is smaller than the sum of its proper divisors (159050943872).

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

157216555648 is a wasteful number, since it uses less digits than its factorization.

157216555648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29265 (or 29253 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 55.

The spelling of 157216555648 in words is "one hundred fifty-seven billion, two hundred sixteen million, five hundred fifty-five thousand, six hundred forty-eight".