6422631566 has 16 divisors (see below), whose sum is σ = 10732780800. Its totient is φ = 2862074208.

The previous prime is 6422631547. The next prime is 6422631571. The reversal of 6422631566 is 6651362246.

It is a happy number.

It is a super-2 number, since 2×6422631566² = 82500392465159224712, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4258286 + ... + 4259793.

It is an arithmetic number, because the mean of its divisors is an integer number (670798800).

Almost surely, 2^6422631566 is an apocalyptic number.

6422631566 is a deficient number, since it is larger than the sum of its proper divisors (4310149234).

6422631566 is a wasteful number, since it uses less digits than its factorization.

6422631566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8518123.

The product of its digits is 311040, while the sum is 41.

The square root of 6422631566 is about 80141.3224622604. The cubic root of 6422631566 is about 1858.8214260621.

The spelling of 6422631566 in words is "six billion, four hundred twenty-two million, six hundred thirty-one thousand, five hundred sixty-six".