15275971216 has 75 divisors (see below), whose sum is σ = 33158077183. Its totient is φ = 6812611520.

The previous prime is 15275971201. The next prime is 15275971223. The reversal of 15275971216 is 61217957251.

The square root of 15275971216 is 123596.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 2981596816 + 12294374400 = 54604^2 + 110880^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 288225846 + ... + 288225898.

Almost surely, 2^15275971216 is an apocalyptic number.

15275971216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15275971216 is the 123596-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15275971216

15275971216 is an abundant number, since it is smaller than the sum of its proper divisors (17882105967).

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

15275971216 is an frugal number, since it uses more digits than its factorization.

15275971216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 66 counting only the distinct ones).

The product of its digits is 264600, while the sum is 46.

The spelling of 15275971216 in words is "fifteen billion, two hundred seventy-five million, nine hundred seventy-one thousand, two hundred sixteen".