23405312605164 has 48 divisors (see below), whose sum is σ = 62419402633728. Its totient is φ = 6686671206528.

The previous prime is 23405312605153. The next prime is 23405312605177. The reversal of 23405312605164 is 46150621350432.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 10678969 + ... + 12682704.

It is an arithmetic number, because the mean of its divisors is an integer number (1300404221536).

Almost surely, 2^{23405312605164} is an apocalyptic number.

It is an amenable number.

23405312605164 is an abundant number, since it is smaller than the sum of its proper divisors (39014090028564).

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

23405312605164 is a wasteful number, since it uses less digits than its factorization.

23405312605164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23373614 (or 23373612 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 23405312605164 its reverse (46150621350432), we get a palindrome (69555933955596).

The spelling of 23405312605164 in words is "twenty-three trillion, four hundred five billion, three hundred twelve million, six hundred five thousand, one hundred sixty-four".