6116611605 has 32 divisors (see below), whose sum is σ = 10997634816. Its totient is φ = 2880328704.

The previous prime is 6116611601. The next prime is 6116611619. The reversal of 6116611605 is 5061166116.

It is not a de Polignac number, because 6116611605 - 2² = 6116611601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6116611601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677412 + ... + 686381.

It is an arithmetic number, because the mean of its divisors is an integer number (343676088).

Almost surely, 2^6116611605 is an apocalyptic number.

6116611605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6116611605 is a deficient number, since it is larger than the sum of its proper divisors (4881023211).

6116611605 is a wasteful number, since it uses less digits than its factorization.

6116611605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363837.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 6116611605 is about 78208.7693612423. The cubic root of 6116611605 is about 1828.8172162271.

It can be divided in two parts, 61166 and 11605, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 6116611605 in words is "six billion, one hundred sixteen million, six hundred eleven thousand, six hundred five".