50106556665 has 40 divisors (see below), whose sum is σ = 97986163968. Its totient is φ = 24294085920.

The previous prime is 50106556631. The next prime is 50106556673. The reversal of 50106556665 is 56665560105.

It is not a de Polignac number, because 50106556665 - 2¹³ = 50106548473 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50106556665.

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 39 ways as a sum of consecutive naturals, for example, 5619177 + ... + 5628086.

Almost surely, 2^50106556665 is an apocalyptic number.

50106556665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50106556665 is a deficient number, since it is larger than the sum of its proper divisors (47879607303).

50106556665 is a wasteful number, since it uses less digits than its factorization.

50106556665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11247291 (or 11247282 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 50106556665 in words is "fifty billion, one hundred six million, five hundred fifty-six thousand, six hundred sixty-five".