16023145249 has 2 divisors, whose sum is σ = 16023145250. Its totient is φ = 16023145248.

The previous prime is 16023145241. The next prime is 16023145267. The reversal of 16023145249 is 94254132061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15608004624 + 415140625 = 124932^2 + 20375^2 .

It is a cyclic number.

It is not a de Polignac number, because 16023145249 - 2³ = 16023145241 is a prime.

It is not a weakly prime, because it can be changed into another prime (16023145241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8011572624 + 8011572625.

It is an arithmetic number, because the mean of its divisors is an integer number (8011572625).

Almost surely, 2^16023145249 is an apocalyptic number.

It is an amenable number.

16023145249 is a deficient number, since it is larger than the sum of its proper divisors (1).

16023145249 is an equidigital number, since it uses as much as digits as its factorization.

16023145249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 16023145249 in words is "sixteen billion, twenty-three million, one hundred forty-five thousand, two hundred forty-nine".