15550660166 has 16 divisors (see below), whose sum is σ = 23703428400. Its totient is φ = 7650039168.

The previous prime is 15550660159. The next prime is 15550660241. The reversal of 15550660166 is 66106605551.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 70496 + ... + 189923.

It is an arithmetic number, because the mean of its divisors is an integer number (1481464275).

Almost surely, 2^15550660166 is an apocalyptic number.

15550660166 is a deficient number, since it is larger than the sum of its proper divisors (8152768234).

15550660166 is a wasteful number, since it uses less digits than its factorization.

15550660166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260903.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 15550660166 in words is "fifteen billion, five hundred fifty million, six hundred sixty thousand, one hundred sixty-six".