23216180551 has 2 divisors, whose sum is σ = 23216180552. Its totient is φ = 23216180550.

The previous prime is 23216180513. The next prime is 23216180621. The reversal of 23216180551 is 15508161232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23216180551 - 2¹³ = 23216172359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23216180501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11608090275 + 11608090276.

It is an arithmetic number, because the mean of its divisors is an integer number (11608090276).

Almost surely, 2^23216180551 is an apocalyptic number.

23216180551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23216180551 is an equidigital number, since it uses as much as digits as its factorization.

23216180551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 23216180551 in words is "twenty-three billion, two hundred sixteen million, one hundred eighty thousand, five hundred fifty-one".