2117557662 has 32 divisors (see below), whose sum is σ = 4647815424. Its totient is φ = 637838400.

The previous prime is 2117557643. The next prime is 2117557679. The reversal of 2117557662 is 2667557112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85039 + ... + 107082.

It is an arithmetic number, because the mean of its divisors is an integer number (145244232).

Almost surely, 2^2117557662 is an apocalyptic number.

2117557662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2117557662 is an abundant number, since it is smaller than the sum of its proper divisors (2530257762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2117557662 is a wasteful number, since it uses less digits than its factorization.

2117557662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192304.

The product of its digits is 176400, while the sum is 42.

The square root of 2117557662 is about 46016.9279939459. The cubic root of 2117557662 is about 1284.1381497981.

The spelling of 2117557662 in words is "two billion, one hundred seventeen million, five hundred fifty-seven thousand, six hundred sixty-two".