15432100056 has 96 divisors (see below), whose sum is σ = 43645212000. Its totient is φ = 4916685312.

The previous prime is 15432100043. The next prime is 15432100069. The reversal of 15432100056 is 65000123451.

It is an interprime number because it is at equal distance from previous prime (15432100043) and next prime (15432100069).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2959980 + ... + 2965188.

It is an arithmetic number, because the mean of its divisors is an integer number (454637625).

Almost surely, 2^15432100056 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 15432100056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21822606000).

15432100056 is an abundant number, since it is smaller than the sum of its proper divisors (28213111944).

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

15432100056 is a wasteful number, since it uses less digits than its factorization.

15432100056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033 (or 7026 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 15432100056 in words is "fifteen billion, four hundred thirty-two million, one hundred thousand, fifty-six".