16131501553 has 2 divisors, whose sum is σ = 16131501554. Its totient is φ = 16131501552.

The previous prime is 16131501541. The next prime is 16131501577. The reversal of 16131501553 is 35510513161.

It is a happy number.

16131501553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14808942864 + 1322558689 = 121692^2 + 36367^2 .

It is a cyclic number.

It is not a de Polignac number, because 16131501553 - 2²⁵ = 16097947121 is a prime.

It is not a weakly prime, because it can be changed into another prime (16131501583) 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 as a sum of consecutive naturals, namely, 8065750776 + 8065750777.

It is an arithmetic number, because the mean of its divisors is an integer number (8065750777).

Almost surely, 2^16131501553 is an apocalyptic number.

It is an amenable number.

16131501553 is a deficient number, since it is larger than the sum of its proper divisors (1).

16131501553 is an equidigital number, since it uses as much as digits as its factorization.

16131501553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 31.

The spelling of 16131501553 in words is "sixteen billion, one hundred thirty-one million, five hundred one thousand, five hundred fifty-three".