50005665666055 has 32 divisors (see below), whose sum is σ = 68434398263808. Its totient is φ = 34722249091200.

The previous prime is 50005665666031. The next prime is 50005665666097. The reversal of 50005665666055 is 55066656650005.

It is not a de Polignac number, because 50005665666055 - 2³¹ = 50003518182407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50005665665987 and 50005665666005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35849989 + ... + 37218718.

It is an arithmetic number, because the mean of its divisors is an integer number (2138574945744).

Almost surely, 2^{50005665666055} is an apocalyptic number.

50005665666055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

50005665666055 is a deficient number, since it is larger than the sum of its proper divisors (18428732597753).

50005665666055 is a wasteful number, since it uses less digits than its factorization.

50005665666055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73069287.

The product of its (nonzero) digits is 24300000, while the sum is 55.

The spelling of 50005665666055 in words is "fifty trillion, five billion, six hundred sixty-five million, six hundred sixty-six thousand, fifty-five".