630253666 has 16 divisors (see below), whose sum is σ = 1105562304. Its totient is φ = 263826864.

The previous prime is 630253649. The next prime is 630253711. The reversal of 630253666 is 666352036.

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, 522865 + ... + 524068.

It is an arithmetic number, because the mean of its divisors is an integer number (69097644).

Almost surely, 2^630253666 is an apocalyptic number.

630253666 is a deficient number, since it is larger than the sum of its proper divisors (475308638).

630253666 is a wasteful number, since it uses less digits than its factorization.

630253666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046985.

The product of its (nonzero) digits is 116640, while the sum is 37.

The square root of 630253666 is about 25104.8534351428. The cubic root of 630253666 is about 857.3769300380.

The spelling of 630253666 in words is "six hundred thirty million, two hundred fifty-three thousand, six hundred sixty-six".