5655396691 has 32 divisors (see below), whose sum is σ = 6842160000. Its totient is φ = 4666951296.

The previous prime is 5655396667. The next prime is 5655396697. The reversal of 5655396691 is 1966935565.

It is not a de Polignac number, because 5655396691 - 2⁷ = 5655396563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5655396697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5062465 + ... + 5063581.

It is an arithmetic number, because the mean of its divisors is an integer number (213817500).

Almost surely, 2^5655396691 is an apocalyptic number.

5655396691 is a deficient number, since it is larger than the sum of its proper divisors (1186763309).

5655396691 is a wasteful number, since it uses less digits than its factorization.

5655396691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1662 counting only the distinct ones).

The product of its digits is 6561000, while the sum is 55.

The square root of 5655396691 is about 75202.3715782953. The cubic root of 5655396691 is about 1781.6443890829.

The spelling of 5655396691 in words is "five billion, six hundred fifty-five million, three hundred ninety-six thousand, six hundred ninety-one".