15561044482 has 8 divisors (see below), whose sum is σ = 23476489596. Its totient is φ = 7735547952.

The previous prime is 15561044459. The next prime is 15561044501. The reversal of 15561044482 is 28444016551.

It can be written as a sum of positive squares in 2 ways, for example, as 15557323441 + 3721041 = 124729^2 + 1929^2 .

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

It is a super-2 number, since 2×15561044482² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22486713 + ... + 22487404.

Almost surely, 2^15561044482 is an apocalyptic number.

15561044482 is a deficient number, since it is larger than the sum of its proper divisors (7915445114).

15561044482 is a wasteful number, since it uses less digits than its factorization.

15561044482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44974292.

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 15561044482 in words is "fifteen billion, five hundred sixty-one million, forty-four thousand, four hundred eighty-two".