23398066512 has 160 divisors (see below), whose sum is σ = 69099029760. Its totient is φ = 7575068160.

The previous prime is 23398066511. The next prime is 23398066519. The reversal of 23398066512 is 21566089332.

23398066512 is a `hidden beast` number, since 23 + 39 + 80 + 6 + 6 + 512 = 666.

It is a super-2 number, since 2×23398066512² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23398066511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13121973 + ... + 13123755.

It is an arithmetic number, because the mean of its divisors is an integer number (431868936).

Almost surely, 2^23398066512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23398066512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34549514880).

23398066512 is an abundant number, since it is smaller than the sum of its proper divisors (45700963248).

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

23398066512 is a wasteful number, since it uses less digits than its factorization.

23398066512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 23398066512 in words is "twenty-three billion, three hundred ninety-eight million, sixty-six thousand, five hundred twelve".