15716715220 has 24 divisors (see below), whose sum is σ = 34946579304. Its totient is φ = 5916880896.

The previous prime is 15716715211. The next prime is 15716715227. The reversal of 15716715220 is 2251761751.

It can be written as a sum of positive squares in 4 ways, for example, as 1420686864 + 14296028356 = 37692^2 + 119566^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15716715220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15716715227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23112477 + ... + 23113156.

It is an arithmetic number, because the mean of its divisors is an integer number (1456107471).

Almost surely, 2^15716715220 is an apocalyptic number.

15716715220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15716715220 is an abundant number, since it is smaller than the sum of its proper divisors (19229864084).

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

15716715220 is a wasteful number, since it uses less digits than its factorization.

15716715220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46225659 (or 46225657 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 15716715220 in words is "fifteen billion, seven hundred sixteen million, seven hundred fifteen thousand, two hundred twenty".