15765452316 has 72 divisors (see below), whose sum is σ = 42241608864. Its totient is φ = 4940651520.

The previous prime is 15765452309. The next prime is 15765452341. The reversal of 15765452316 is 61325456751.

15765452316 is a `hidden beast` number, since 1 + 5 + 76 + 54 + 523 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 569721 + ... + 596751.

It is an arithmetic number, because the mean of its divisors is an integer number (586689012).

Almost surely, 2^15765452316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15765452316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21120804432).

15765452316 is an abundant number, since it is smaller than the sum of its proper divisors (26476156548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15765452316 is a wasteful number, since it uses less digits than its factorization.

15765452316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28011 (or 28006 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 15765452316 in words is "fifteen billion, seven hundred sixty-five million, four hundred fifty-two thousand, three hundred sixteen".