23578401366 has 48 divisors (see below), whose sum is σ = 55029920400. Its totient is φ = 7253092800.

The previous prime is 23578401359. The next prime is 23578401403. The reversal of 23578401366 is 66310487532.

23578401366 is a `hidden beast` number, since 2 + 3 + 578 + 4 + 0 + 13 + 66 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1171960 + ... + 1191908.

It is an arithmetic number, because the mean of its divisors is an integer number (1146456675).

Almost surely, 2^23578401366 is an apocalyptic number.

23578401366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23578401366 is an abundant number, since it is smaller than the sum of its proper divisors (31451519034).

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

23578401366 is a wasteful number, since it uses less digits than its factorization.

23578401366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25021 (or 25018 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

Adding to 23578401366 its reverse (66310487532), we get a palindrome (89888888898).

The spelling of 23578401366 in words is "twenty-three billion, five hundred seventy-eight million, four hundred one thousand, three hundred sixty-six".