50166161115511 has 12 divisors (see below), whose sum is σ = 58356700573080. Its totient is φ = 42999459234480.

The previous prime is 50166161115487. The next prime is 50166161115523. The reversal of 50166161115511 is 11551116166105.

It is a happy number.

It is not a de Polignac number, because 50166161115511 - 2⁵ = 50166161115479 is a prime.

It is a super-2 number, since 2×50166161115511² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50166161110511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23306116 + ... + 25367446.

It is an arithmetic number, because the mean of its divisors is an integer number (4863058381090).

Almost surely, 2^{50166161115511} is an apocalyptic number.

50166161115511 is a deficient number, since it is larger than the sum of its proper divisors (8190539457569).

50166161115511 is a wasteful number, since it uses less digits than its factorization.

50166161115511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558014 (or 2558007 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 40.

The spelling of 50166161115511 in words is "fifty trillion, one hundred sixty-six billion, one hundred sixty-one million, one hundred fifteen thousand, five hundred eleven".