165976879134 has 16 divisors (see below), whose sum is σ = 362131372800. Its totient is φ = 50296023960.

The previous prime is 165976879121. The next prime is 165976879139. The reversal of 165976879134 is 431978679561.

165976879134 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 2514801199 = 165976879134 / (1 + 6 + 5 + 9 + 7 + 6 + 8 + 7 + 9 + 1 + 3 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165976879139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1257400534 + ... + 1257400665.

It is an arithmetic number, because the mean of its divisors is an integer number (22633210800).

Almost surely, 2^165976879134 is an apocalyptic number.

165976879134 is an abundant number, since it is smaller than the sum of its proper divisors (196154493666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165976879134 is a wasteful number, since it uses less digits than its factorization.

165976879134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514801215.

The product of its digits is 68584320, while the sum is 66.

The spelling of 165976879134 in words is "one hundred sixty-five billion, nine hundred seventy-six million, eight hundred seventy-nine thousand, one hundred thirty-four".