165111157417383 has 12 divisors (see below), whose sum is σ = 238747341343368. Its totient is φ = 109957129269840.

The previous prime is 165111157417373. The next prime is 165111157417399. The reversal of 165111157417383 is 383714751111561.

165111157417383 is a `hidden beast` number, since 1 + 6 + 5 + 11 + 11 + 574 + 17 + 38 + 3 = 666.

It is not a de Polignac number, because 165111157417383 - 2⁸ = 165111157417127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165111157417303) 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, 9747963985 + ... + 9747980922.

It is an arithmetic number, because the mean of its divisors is an integer number (19895611778614).

Almost surely, 2^{165111157417383} is an apocalyptic number.

165111157417383 is a deficient number, since it is larger than the sum of its proper divisors (73636183925985).

165111157417383 is a wasteful number, since it uses less digits than its factorization.

165111157417383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19495945854 (or 19495945851 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 54.

The spelling of 165111157417383 in words is "one hundred sixty-five trillion, one hundred eleven billion, one hundred fifty-seven million, four hundred seventeen thousand, three hundred eighty-three".