144406081688 has 32 divisors (see below), whose sum is σ = 295406678160. Its totient is φ = 65632327680.

The previous prime is 144406081661. The next prime is 144406081697. The reversal of 144406081688 is 886180604441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824156 + ... + 983892.

Almost surely, 2^144406081688 is an apocalyptic number.

It is an amenable number.

144406081688 is an abundant number, since it is smaller than the sum of its proper divisors (151000596472).

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

144406081688 is a wasteful number, since it uses less digits than its factorization.

144406081688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170027 (or 170023 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 50.

The spelling of 144406081688 in words is "one hundred forty-four billion, four hundred six million, eighty-one thousand, six hundred eighty-eight".