5662217661 has 32 divisors (see below), whose sum is σ = 7734674688. Its totient is φ = 3683750400.

The previous prime is 5662217653. The next prime is 5662217731. The reversal of 5662217661 is 1667122665.

It is not a de Polignac number, because 5662217661 - 2³ = 5662217653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5662210661) 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, 12389745 + ... + 12390201.

It is an arithmetic number, because the mean of its divisors is an integer number (241708584).

Almost surely, 2^5662217661 is an apocalyptic number.

It is an amenable number.

5662217661 is a deficient number, since it is larger than the sum of its proper divisors (2072457027).

5662217661 is a wasteful number, since it uses less digits than its factorization.

5662217661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its digits is 181440, while the sum is 42.

The square root of 5662217661 is about 75247.7086760786. The cubic root of 5662217661 is about 1782.3603813253.

The spelling of 5662217661 in words is "five billion, six hundred sixty-two million, two hundred seventeen thousand, six hundred sixty-one".