15412021056 has 168 divisors, whose sum is σ = 46183198464. Its totient is φ = 4904739840.

The previous prime is 15412021003. The next prime is 15412021081. The reversal of 15412021056 is 65012021451.

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, 12068290 + ... + 12069566.

Almost surely, 2^15412021056 is an apocalyptic number.

15412021056 is a gapful number since it is divisible by the number (16) 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 15412021056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23091599232).

15412021056 is an abundant number, since it is smaller than the sum of its proper divisors (30771177408).

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

15412021056 is a wasteful number, since it uses less digits than its factorization.

15412021056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229 (or 2216 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 15412021056 in words is "fifteen billion, four hundred twelve million, twenty-one thousand, fifty-six".