550166511015 has 64 divisors (see below), whose sum is σ = 1068119032320. Its totient is φ = 266465041920.

The previous prime is 550166511007. The next prime is 550166511043. The reversal of 550166511015 is 510115661055.

It is a happy number.

It is not a de Polignac number, because 550166511015 - 2³ = 550166511007 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 1210687 + ... + 1601903.

It is an arithmetic number, because the mean of its divisors is an integer number (16689359880).

Almost surely, 2^550166511015 is an apocalyptic number.

550166511015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

550166511015 is a deficient number, since it is larger than the sum of its proper divisors (517952521305).

550166511015 is a wasteful number, since it uses less digits than its factorization.

550166511015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392189 (or 392183 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 550166511015 in words is "five hundred fifty billion, one hundred sixty-six million, five hundred eleven thousand, fifteen".