15275221016 has 24 divisors (see below), whose sum is σ = 31481475060. Its totient is φ = 6943281840.

The previous prime is 15275220997. The next prime is 15275221061. The reversal of 15275221016 is 61012257251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7889126 + ... + 7891061.

Almost surely, 2^15275221016 is an apocalyptic number.

It is an amenable number.

15275221016 is an abundant number, since it is smaller than the sum of its proper divisors (16206254044).

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

15275221016 is a wasteful number, since it uses less digits than its factorization.

15275221016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780215 (or 15780200 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 15275221016 its reverse (61012257251), we get a palindrome (76287478267).

The spelling of 15275221016 in words is "fifteen billion, two hundred seventy-five million, two hundred twenty-one thousand, sixteen".