6615941677 has 4 divisors (see below), whose sum is σ = 6616143520. Its totient is φ = 6615739836.

The previous prime is 6615941669. The next prime is 6615941681. The reversal of 6615941677 is 7761495166.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6615941677 - 2³ = 6615941669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615941627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39153 + ... + 121510.

It is an arithmetic number, because the mean of its divisors is an integer number (1654035880).

Almost surely, 2^6615941677 is an apocalyptic number.

It is an amenable number.

6615941677 is a deficient number, since it is larger than the sum of its proper divisors (201843).

6615941677 is a wasteful number, since it uses less digits than its factorization.

6615941677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201842.

The product of its digits is 1905120, while the sum is 52.

The square root of 6615941677 is about 81338.4391109148. The cubic root of 6615941677 is about 1877.2864954974.

The spelling of 6615941677 in words is "six billion, six hundred fifteen million, nine hundred forty-one thousand, six hundred seventy-seven".