165143516626434 has 32 divisors (see below), whose sum is σ = 336795621462144. Its totient is φ = 53973657244800.

The previous prime is 165143516626433. The next prime is 165143516626441. The reversal of 165143516626434 is 434626615341561.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (165143516626433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1322821339 + ... + 1322946174.

It is an arithmetic number, because the mean of its divisors is an integer number (10524863170692).

Almost surely, 2^{165143516626434} is an apocalyptic number.

165143516626434 is an abundant number, since it is smaller than the sum of its proper divisors (171652104835710).

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

165143516626434 is a wasteful number, since it uses less digits than its factorization.

165143516626434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645767722.

The product of its digits is 37324800, while the sum is 57.

The spelling of 165143516626434 in words is "one hundred sixty-five trillion, one hundred forty-three billion, five hundred sixteen million, six hundred twenty-six thousand, four hundred thirty-four".