2115145557316 has 27 divisors (see below), whose sum is σ = 4068657649567. Its totient is φ = 961415255240.

The previous prime is 2115145557311. The next prime is 2115145557341. The reversal of 2115145557316 is 6137555415112.

The square root of 2115145557316 is 1454354.

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

It is a super-2 number, since 2×2115145557316² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115145557311) 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, 31962735 + ... + 32028841.

Almost surely, 2^{2115145557316} is an apocalyptic number.

2115145557316 is the 1454354-th square number.

It is an amenable number.

2115145557316 is a deficient number, since it is larger than the sum of its proper divisors (1953512092251).

2115145557316 is an frugal number, since it uses more digits than its factorization.

2115145557316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132240 (or 66120 counting only the distinct ones).

The product of its digits is 630000, while the sum is 46.

The spelling of 2115145557316 in words is "two trillion, one hundred fifteen billion, one hundred forty-five million, five hundred fifty-seven thousand, three hundred sixteen".