2116537655 has 8 divisors (see below), whose sum is σ = 2689247952. Its totient is φ = 1593628288.

The previous prime is 2116537639. The next prime is 2116537681. The reversal of 2116537655 is 5567356112.

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 2116537655 - 2⁴ = 2116537639 is a prime.

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, 12450137 + ... + 12450306.

It is an arithmetic number, because the mean of its divisors is an integer number (336155994).

Almost surely, 2^2116537655 is an apocalyptic number.

2116537655 is a deficient number, since it is larger than the sum of its proper divisors (572710297).

2116537655 is a wasteful number, since it uses less digits than its factorization.

2116537655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24900465.

The product of its digits is 189000, while the sum is 41.

The square root of 2116537655 is about 46005.8437049034. The cubic root of 2116537655 is about 1283.9319310502.

The spelling of 2116537655 in words is "two billion, one hundred sixteen million, five hundred thirty-seven thousand, six hundred fifty-five".