23660642153 has 4 divisors (see below), whose sum is σ = 24237731028. Its totient is φ = 23083553280.

The previous prime is 23660642149. The next prime is 23660642167. The reversal of 23660642153 is 35124606632.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2453419024 + 21207223129 = 49532^2 + 145627^2 .

It is a cyclic number.

It is not a de Polignac number, because 23660642153 - 2² = 23660642149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23660642053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288544376 + ... + 288544457.

It is an arithmetic number, because the mean of its divisors is an integer number (6059432757).

Almost surely, 2^23660642153 is an apocalyptic number.

It is an amenable number.

23660642153 is a deficient number, since it is larger than the sum of its proper divisors (577088875).

23660642153 is an equidigital number, since it uses as much as digits as its factorization.

23660642153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577088874.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 23660642153 in words is "twenty-three billion, six hundred sixty million, six hundred forty-two thousand, one hundred fifty-three".