23400940165 has 8 divisors (see below), whose sum is σ = 28156414968. Its totient is φ = 18670560960.

The previous prime is 23400940139. The next prime is 23400940183. The reversal of 23400940165 is 56104900432.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29257281 + 23371682884 = 5409^2 + 152878^2 .

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

It is not a de Polignac number, because 23400940165 - 2²⁹ = 22864069253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23400940165.

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, 6271846 + ... + 6275575.

It is an arithmetic number, because the mean of its divisors is an integer number (3519551871).

Almost surely, 2^23400940165 is an apocalyptic number.

It is an amenable number.

23400940165 is a deficient number, since it is larger than the sum of its proper divisors (4755474803).

23400940165 is a wasteful number, since it uses less digits than its factorization.

23400940165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547799.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 23400940165 in words is "twenty-three billion, four hundred million, nine hundred forty thousand, one hundred sixty-five".