2215155156188 has 24 divisors (see below), whose sum is σ = 4175980492320. Its totient is φ = 1022069505600.

The previous prime is 2215155156167. The next prime is 2215155156191. The reversal of 2215155156188 is 8816515515122.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6280808 + ... + 6624111.

It is an arithmetic number, because the mean of its divisors is an integer number (173999187180).

Almost surely, 2^{2215155156188} is an apocalyptic number.

It is an amenable number.

2215155156188 is a deficient number, since it is larger than the sum of its proper divisors (1960825336132).

2215155156188 is a wasteful number, since it uses less digits than its factorization.

2215155156188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12908237 (or 12908235 counting only the distinct ones).

The product of its digits is 960000, while the sum is 50.

The spelling of 2215155156188 in words is "two trillion, two hundred fifteen billion, one hundred fifty-five million, one hundred fifty-six thousand, one hundred eighty-eight".