23405540256063 has 12 divisors (see below), whose sum is σ = 38637717248208. Its totient is φ = 13374594432000.

The previous prime is 23405540255987. The next prime is 23405540256097. The reversal of 23405540256063 is 36065204550432.

23405540256063 is a `hidden beast` number, since 2 + 3 + 40 + 5 + 5 + 40 + 2 + 560 + 6 + 3 = 666.

It is not a de Polignac number, because 23405540256063 - 2¹³ = 23405540247871 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23405540256463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185758255938 + ... + 185758256063.

It is an arithmetic number, because the mean of its divisors is an integer number (3219809770684).

Almost surely, 2^{23405540256063} is an apocalyptic number.

23405540256063 is a deficient number, since it is larger than the sum of its proper divisors (15232176992145).

23405540256063 is a wasteful number, since it uses less digits than its factorization.

23405540256063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371516512014 (or 371516512011 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 45.

The spelling of 23405540256063 in words is "twenty-three trillion, four hundred five billion, five hundred forty million, two hundred fifty-six thousand, sixty-three".