180165888001 has 6 divisors (see below), whose sum is σ = 198033579506. Its totient is φ = 163787170800.

The previous prime is 180165887989. The next prime is 180165888061. The reversal of 180165888001 is 100888561081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 145770476401 + 34395411600 = 381799^2 + 185460^2 .

It is not a de Polignac number, because 180165888001 - 2³¹ = 178018404353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180165888061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 744487020 + ... + 744487261.

Almost surely, 2^180165888001 is an apocalyptic number.

180165888001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

180165888001 is a deficient number, since it is larger than the sum of its proper divisors (17867691505).

180165888001 is a wasteful number, since it uses less digits than its factorization.

180165888001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488974303 (or 1488974292 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 46.

The spelling of 180165888001 in words is "one hundred eighty billion, one hundred sixty-five million, eight hundred eighty-eight thousand, one".