2157432451160 has 128 divisors (see below), whose sum is σ = 5801398087680. Its totient is φ = 706001522688.

The previous prime is 2157432451001. The next prime is 2157432451243. The reversal of 2157432451160 is 611542347512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2619944 + ... + 3343496.

It is an arithmetic number, because the mean of its divisors is an integer number (45323422560).

Almost surely, 2^{2157432451160} is an apocalyptic number.

2157432451160 is a gapful number since it is divisible by the number (20) 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 2157432451160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2900699043840).

2157432451160 is an abundant number, since it is smaller than the sum of its proper divisors (3643965636520).

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

2157432451160 is a wasteful number, since it uses less digits than its factorization.

2157432451160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724057 (or 724053 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

Adding to 2157432451160 its reverse (611542347512), we get a palindrome (2768974798672).

The spelling of 2157432451160 in words is "two trillion, one hundred fifty-seven billion, four hundred thirty-two million, four hundred fifty-one thousand, one hundred sixty".