6655611615 has 32 divisors (see below), whose sum is σ = 10960634880. Its totient is φ = 3446193024.

The previous prime is 6655611527. The next prime is 6655611623. The reversal of 6655611615 is 5161165566.

It is not a de Polignac number, because 6655611615 - 2¹⁵ = 6655578847 is a prime.

It is a congruent number.

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, 246346 + ... + 272024.

It is an arithmetic number, because the mean of its divisors is an integer number (342519840).

Almost surely, 2^6655611615 is an apocalyptic number.

6655611615 is a deficient number, since it is larger than the sum of its proper divisors (4305023265).

6655611615 is a wasteful number, since it uses less digits than its factorization.

6655611615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26191.

The product of its digits is 162000, while the sum is 42.

The square root of 6655611615 is about 81581.9319150999. The cubic root of 6655611615 is about 1881.0311620001.

The spelling of 6655611615 in words is "six billion, six hundred fifty-five million, six hundred eleven thousand, six hundred fifteen".