15715055566 has 32 divisors (see below), whose sum is σ = 27743616000. Its totient is φ = 6537035232.

The previous prime is 15715055557. The next prime is 15715055567. The reversal of 15715055566 is 66555051751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15715055567) 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 15 ways as a sum of consecutive naturals, for example, 55161 + ... + 185668.

It is an arithmetic number, because the mean of its divisors is an integer number (866988000).

Almost surely, 2^15715055566 is an apocalyptic number.

15715055566 is a deficient number, since it is larger than the sum of its proper divisors (12028560434).

15715055566 is a wasteful number, since it uses less digits than its factorization.

15715055566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240976.

The product of its (nonzero) digits is 787500, while the sum is 46.

The spelling of 15715055566 in words is "fifteen billion, seven hundred fifteen million, fifty-five thousand, five hundred sixty-six".