663020722 has 16 divisors (see below), whose sum is σ = 1224038592. Its totient is φ = 262293840.

The previous prime is 663020711. The next prime is 663020753. The reversal of 663020722 is 227020366.

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, 1821304 + ... + 1821667.

It is an arithmetic number, because the mean of its divisors is an integer number (76502412).

Almost surely, 2^663020722 is an apocalyptic number.

663020722 is a deficient number, since it is larger than the sum of its proper divisors (561017870).

663020722 is a wasteful number, since it uses less digits than its factorization.

663020722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642993.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 663020722 is about 25749.1887639203. The cubic root of 663020722 is about 871.9850397582.

The spelling of 663020722 in words is "six hundred sixty-three million, twenty thousand, seven hundred twenty-two".