23401555699 has 2 divisors, whose sum is σ = 23401555700. Its totient is φ = 23401555698.

The previous prime is 23401555693. The next prime is 23401555741. The reversal of 23401555699 is 99655510432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23401555699 - 2¹⁵ = 23401522931 is a prime.

It is not a weakly prime, because it can be changed into another prime (23401555693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700777849 + 11700777850.

It is an arithmetic number, because the mean of its divisors is an integer number (11700777850).

Almost surely, 2^23401555699 is an apocalyptic number.

23401555699 is a deficient number, since it is larger than the sum of its proper divisors (1).

23401555699 is an equidigital number, since it uses as much as digits as its factorization.

23401555699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The spelling of 23401555699 in words is "twenty-three billion, four hundred one million, five hundred fifty-five thousand, six hundred ninety-nine".