144664568790 has 32 divisors (see below), whose sum is σ = 396794246400. Its totient is φ = 33066187104.

The previous prime is 144664568761. The next prime is 144664568813. The reversal of 144664568790 is 97865466441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344439240 + ... + 344439659.

It is an arithmetic number, because the mean of its divisors is an integer number (12399820200).

Almost surely, 2^144664568790 is an apocalyptic number.

144664568790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144664568790 is an abundant number, since it is smaller than the sum of its proper divisors (252129677610).

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

144664568790 is a wasteful number, since it uses less digits than its factorization.

144664568790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688878916.

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 144664568790 in words is "one hundred forty-four billion, six hundred sixty-four million, five hundred sixty-eight thousand, seven hundred ninety".