630140664 has 32 divisors (see below), whose sum is σ = 1583280000. Its totient is φ = 208989792.

The previous prime is 630140657. The next prime is 630140671. The reversal of 630140664 is 466041036.

It is an interprime number because it is at equal distance from previous prime (630140657) and next prime (630140671).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61194 + ... + 70745.

It is an arithmetic number, because the mean of its divisors is an integer number (49477500).

Almost surely, 2^630140664 is an apocalyptic number.

It is an amenable number.

630140664 is an abundant number, since it is smaller than the sum of its proper divisors (953139336).

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

630140664 is a wasteful number, since it uses less digits than its factorization.

630140664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132147 (or 132143 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 630140664 is about 25102.6027335812. The cubic root of 630140664 is about 857.3256855397.

The spelling of 630140664 in words is "six hundred thirty million, one hundred forty thousand, six hundred sixty-four".