165838101154 has 16 divisors (see below), whose sum is σ = 278705802816. Its totient is φ = 73343631600.

The previous prime is 165838101151. The next prime is 165838101167. The reversal of 165838101154 is 451101838561.

It is a super-2 number, since 2×165838101154² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 165838101154.

It is not an unprimeable number, because it can be changed into a prime (165838101151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101865342 + ... + 101866969.

It is an arithmetic number, because the mean of its divisors is an integer number (17419112676).

Almost surely, 2^165838101154 is an apocalyptic number.

165838101154 is a deficient number, since it is larger than the sum of its proper divisors (112867701662).

165838101154 is a wasteful number, since it uses less digits than its factorization.

165838101154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203732361.

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 165838101154 in words is "one hundred sixty-five billion, eight hundred thirty-eight million, one hundred one thousand, one hundred fifty-four".