2215545225615 has 24 divisors (see below), whose sum is σ = 3867906304080. Its totient is φ = 1173123224064.

The previous prime is 2215545225577. The next prime is 2215545225623. The reversal of 2215545225615 is 5165225455122.

2215545225615 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 5 + 4 + 5 + 2 + 25 + 615 = 666.

It is not a de Polignac number, because 2215545225615 - 2¹³ = 2215545217423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177095682 + ... + 177108191.

It is an arithmetic number, because the mean of its divisors is an integer number (161162762670).

Almost surely, 2^{2215545225615} is an apocalyptic number.

2215545225615 is a deficient number, since it is larger than the sum of its proper divisors (1652361078465).

2215545225615 is a wasteful number, since it uses less digits than its factorization.

2215545225615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354204023 (or 354204020 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

The spelling of 2215545225615 in words is "two trillion, two hundred fifteen billion, five hundred forty-five million, two hundred twenty-five thousand, six hundred fifteen".