123165145402264 has 32 divisors (see below), whose sum is σ = 264113964576000. Its totient is φ = 52747331715360.

The previous prime is 123165145402261. The next prime is 123165145402303. The reversal of 123165145402264 is 462204541561321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123165145402261) 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, 785975122 + ... + 786131809.

It is an arithmetic number, because the mean of its divisors is an integer number (8253561393000).

Almost surely, 2^{123165145402264} is an apocalyptic number.

123165145402264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123165145402264 is an abundant number, since it is smaller than the sum of its proper divisors (140948819173736).

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

123165145402264 is a wasteful number, since it uses less digits than its factorization.

123165145402264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572108343 (or 1572108339 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

Adding to 123165145402264 its reverse (462204541561321), we get a palindrome (585369686963585).

The spelling of 123165145402264 in words is "one hundred twenty-three trillion, one hundred sixty-five billion, one hundred forty-five million, four hundred two thousand, two hundred sixty-four".