55615738099216 has 15 divisors (see below), whose sum is σ = 107755550363631. Its totient is φ = 27807854134416.

The previous prime is 55615738099147. The next prime is 55615738099219. The reversal of 55615738099216 is 61299083751655.

The square root of 55615738099216 is 7457596.

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

It is a super-2 number, since 2×55615738099216² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55615738099219) 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, 28898185 + ... + 30762583.

Almost surely, 2^{55615738099216} is an apocalyptic number.

55615738099216 is the 7457596-th square number.

It is an amenable number.

55615738099216 is a deficient number, since it is larger than the sum of its proper divisors (52139812264415).

55615738099216 is an frugal number, since it uses more digits than its factorization.

55615738099216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728806 (or 1864401 counting only the distinct ones).

The product of its (nonzero) digits is 122472000, while the sum is 67.

The spelling of 55615738099216 in words is "fifty-five trillion, six hundred fifteen billion, seven hundred thirty-eight million, ninety-nine thousand, two hundred sixteen".