40389901165 has 8 divisors (see below), whose sum is σ = 48491162208. Its totient is φ = 32296400400.

The previous prime is 40389901151. The next prime is 40389901213. The reversal of 40389901165 is 56110998304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40389901165 - 2⁵ = 40389901133 is a prime.

It is a super-2 number, since 2×40389901165² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1928611 + ... + 1949440.

It is an arithmetic number, because the mean of its divisors is an integer number (6061395276).

Almost surely, 2^40389901165 is an apocalyptic number.

It is an amenable number.

40389901165 is a deficient number, since it is larger than the sum of its proper divisors (8101261043).

40389901165 is a wasteful number, since it uses less digits than its factorization.

40389901165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880139.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 40389901165 in words is "forty billion, three hundred eighty-nine million, nine hundred one thousand, one hundred sixty-five".