15110261644864 has 21 divisors (see below), whose sum is σ = 29984487160827. Its totient is φ = 7555115273664.

The previous prime is 15110261644861. The next prime is 15110261644883. The reversal of 15110261644864 is 46844616201151.

The square root of 15110261644864 is 3887192.

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

It is a super-2 number, since 2×15110261644864² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15110261644861) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 30854587 + ... + 31340485.

Almost surely, 2^{15110261644864} is an apocalyptic number.

15110261644864 is the 3887192-nd square number.

It is an amenable number.

15110261644864 is a deficient number, since it is larger than the sum of its proper divisors (14874225515963).

15110261644864 is an frugal number, since it uses more digits than its factorization.

15110261644864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971810 (or 485901 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

Multiplying 15110261644864 by its sum of digits (49), we get a square (740402820598336 = 27210344²).

The spelling of 15110261644864 in words is "fifteen trillion, one hundred ten billion, two hundred sixty-one million, six hundred forty-four thousand, eight hundred sixty-four".