5642455566 has 32 divisors (see below), whose sum is σ = 12430349568. Its totient is φ = 1693232640.

The previous prime is 5642455543. The next prime is 5642455573. The reversal of 5642455566 is 6655542465.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408211 + ... + 421806.

It is an arithmetic number, because the mean of its divisors is an integer number (388448424).

Almost surely, 2^5642455566 is an apocalyptic number.

5642455566 is an abundant number, since it is smaller than the sum of its proper divisors (6787894002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5642455566 is a wasteful number, since it uses less digits than its factorization.

5642455566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830136.

The product of its digits is 4320000, while the sum is 48.

The square root of 5642455566 is about 75116.2802992800. The cubic root of 5642455566 is about 1780.2843847690.

The spelling of 5642455566 in words is "five billion, six hundred forty-two million, four hundred fifty-five thousand, five hundred sixty-six".