23403505560 has 64 divisors (see below), whose sum is σ = 73263156480. Its totient is φ = 5969589120.

The previous prime is 23403505513. The next prime is 23403505561. The reversal of 23403505560 is 6550530432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403505561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4237006 + ... + 4242525.

It is an arithmetic number, because the mean of its divisors is an integer number (1144736820).

Almost surely, 2^23403505560 is an apocalyptic number.

23403505560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23403505560 is an abundant number, since it is smaller than the sum of its proper divisors (49859650920).

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

23403505560 is a wasteful number, since it uses less digits than its factorization.

23403505560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8479568 (or 8479564 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 23403505560 in words is "twenty-three billion, four hundred three million, five hundred five thousand, five hundred sixty".