15056222661 has 12 divisors (see below), whose sum is σ = 22210598592. Its totient is φ = 9823918056.

The previous prime is 15056222653. The next prime is 15056222683. The reversal of 15056222661 is 16622265051.

15056222661 is a `hidden beast` number, since 1 + 5 + 0 + 5 + 622 + 26 + 6 + 1 = 666.

It is not a de Polignac number, because 15056222661 - 2³ = 15056222653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15056222761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17796531 + ... + 17797376.

It is an arithmetic number, because the mean of its divisors is an integer number (1850883216).

Almost surely, 2^15056222661 is an apocalyptic number.

It is an amenable number.

15056222661 is a deficient number, since it is larger than the sum of its proper divisors (7154375931).

15056222661 is a wasteful number, since it uses less digits than its factorization.

15056222661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35593960 (or 35593957 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 15056222661 in words is "fifteen billion, fifty-six million, two hundred twenty-two thousand, six hundred sixty-one".