2122115166555 has 32 divisors (see below), whose sum is σ = 3626927959104. Its totient is φ = 1055791865856.

The previous prime is 2122115166539. The next prime is 2122115166583. The reversal of 2122115166555 is 5556615112212.

It is a happy number.

It is not a de Polignac number, because 2122115166555 - 2⁴ = 2122115166539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36794284 + ... + 36851913.

It is an arithmetic number, because the mean of its divisors is an integer number (113341498722).

Almost surely, 2^{2122115166555} is an apocalyptic number.

2122115166555 is a deficient number, since it is larger than the sum of its proper divisors (1504812792549).

2122115166555 is a wasteful number, since it uses less digits than its factorization.

2122115166555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73646335.

The product of its digits is 180000, while the sum is 42.

The spelling of 2122115166555 in words is "two trillion, one hundred twenty-two billion, one hundred fifteen million, one hundred sixty-six thousand, five hundred fifty-five".