15552802123 has 2 divisors, whose sum is σ = 15552802124. Its totient is φ = 15552802122.

The previous prime is 15552802093. The next prime is 15552802151. The reversal of 15552802123 is 32120825551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15552802123 - 2⁵ = 15552802091 is a prime.

It is not a weakly prime, because it can be changed into another prime (15552802163) 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 as a sum of consecutive naturals, namely, 7776401061 + 7776401062.

It is an arithmetic number, because the mean of its divisors is an integer number (7776401062).

Almost surely, 2^15552802123 is an apocalyptic number.

15552802123 is a deficient number, since it is larger than the sum of its proper divisors (1).

15552802123 is an equidigital number, since it uses as much as digits as its factorization.

15552802123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 15552802123 in words is "fifteen billion, five hundred fifty-two million, eight hundred two thousand, one hundred twenty-three".