15091139716 has 27 divisors (see below), whose sum is σ = 26624050789. Its totient is φ = 7484761088.

The previous prime is 15091139689. The next prime is 15091139719. The reversal of 15091139716 is 61793119051.

The square root of 15091139716 is 122846.

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

It can be written as a sum of positive squares in only one way, i.e., 14857172100 + 233967616 = 121890^2 + 15296^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15091139719) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 58720260 + ... + 58720516.

Almost surely, 2^15091139716 is an apocalyptic number.

15091139716 is the 122846-th square number.

It is an amenable number.

15091139716 is a deficient number, since it is larger than the sum of its proper divisors (11532911073).

15091139716 is an frugal number, since it uses more digits than its factorization.

15091139716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 43.

The spelling of 15091139716 in words is "fifteen billion, ninety-one million, one hundred thirty-nine thousand, seven hundred sixteen".