55166150511 has 12 divisors (see below), whose sum is σ = 79776785088. Its totient is φ = 36734812704.

The previous prime is 55166150491. The next prime is 55166150513. The reversal of 55166150511 is 11505166155.

It is a happy number.

55166150511 is a `hidden beast` number, since 551 + 6 + 6 + 1 + 50 + 51 + 1 = 666.

It is not a de Polignac number, because 55166150511 - 2¹⁸ = 55165888367 is a prime.

It is a super-2 number, since 2×55166150511² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55166150513) 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 11 ways as a sum of consecutive naturals, for example, 3543550 + ... + 3559083.

It is an arithmetic number, because the mean of its divisors is an integer number (6648065424).

Almost surely, 2^55166150511 is an apocalyptic number.

55166150511 is a deficient number, since it is larger than the sum of its proper divisors (24610634577).

55166150511 is a wasteful number, since it uses less digits than its factorization.

55166150511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7103502 (or 7103499 counting only the distinct ones).

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

The spelling of 55166150511 in words is "fifty-five billion, one hundred sixty-six million, one hundred fifty thousand, five hundred eleven".