104165206251 has 32 divisors (see below), whose sum is σ = 144361400832. Its totient is φ = 66760485120.

The previous prime is 104165206231. The next prime is 104165206259. The reversal of 104165206251 is 152602561401.

It is not a de Polignac number, because 104165206251 - 2²⁶ = 104098097387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104165206259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5605191 + ... + 5623743.

It is an arithmetic number, because the mean of its divisors is an integer number (4511293776).

Almost surely, 2^104165206251 is an apocalyptic number.

104165206251 is a deficient number, since it is larger than the sum of its proper divisors (40196194581).

104165206251 is a wasteful number, since it uses less digits than its factorization.

104165206251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19283.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 104165206251 its reverse (152602561401), we get a palindrome (256767767652).

The spelling of 104165206251 in words is "one hundred four billion, one hundred sixty-five million, two hundred six thousand, two hundred fifty-one".