5661654867 has 32 divisors (see below), whose sum is σ = 9170219520. Its totient is φ = 3423780000.

The previous prime is 5661654851. The next prime is 5661654871. The reversal of 5661654867 is 7684561665.

5661654867 is a `hidden beast` number, since 566 + 16 + 5 + 4 + 8 + 67 = 666.

It is not a de Polignac number, because 5661654867 - 2⁴ = 5661654851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5661654367) 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, 116242 + ... + 157592.

It is an arithmetic number, because the mean of its divisors is an integer number (286569360).

Almost surely, 2^5661654867 is an apocalyptic number.

5661654867 is a deficient number, since it is larger than the sum of its proper divisors (3508564653).

5661654867 is a wasteful number, since it uses less digits than its factorization.

5661654867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41832 (or 41826 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 5661654867 is about 75243.9689742640. The cubic root of 5661654867 is about 1782.3013270216.

The spelling of 5661654867 in words is "five billion, six hundred sixty-one million, six hundred fifty-four thousand, eight hundred sixty-seven".