15056457081 has 8 divisors (see below), whose sum is σ = 20081464224. Its totient is φ = 10034544000.

The previous prime is 15056457061. The next prime is 15056457089. The reversal of 15056457081 is 18075465051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15056457081 - 2⁵ = 15056457049 is a prime.

It is a super-2 number, since 2×15056457081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15056457089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762136 + ... + 781641.

It is an arithmetic number, because the mean of its divisors is an integer number (2510183028).

Almost surely, 2^15056457081 is an apocalyptic number.

It is an amenable number.

15056457081 is a deficient number, since it is larger than the sum of its proper divisors (5025007143).

15056457081 is a wasteful number, since it uses less digits than its factorization.

15056457081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547031.

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 15056457081 in words is "fifteen billion, fifty-six million, four hundred fifty-seven thousand, eighty-one".