2117534655 has 8 divisors (see below), whose sum is σ = 3388055472. Its totient is φ = 1129351808.

The previous prime is 2117534641. The next prime is 2117534659. The reversal of 2117534655 is 5564357112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2117534655 - 2¹² = 2117530559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117534659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70584474 + ... + 70584503.

It is an arithmetic number, because the mean of its divisors is an integer number (423506934).

Almost surely, 2^2117534655 is an apocalyptic number.

2117534655 is a deficient number, since it is larger than the sum of its proper divisors (1270520817).

2117534655 is a wasteful number, since it uses less digits than its factorization.

2117534655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141168985.

The product of its digits is 126000, while the sum is 39.

The square root of 2117534655 is about 46016.6780091740. The cubic root of 2117534655 is about 1284.1334991143.

The spelling of 2117534655 in words is "two billion, one hundred seventeen million, five hundred thirty-four thousand, six hundred fifty-five".