630665101 has 16 divisors (see below), whose sum is σ = 704793600. Its totient is φ = 559479600.

The previous prime is 630665089. The next prime is 630665143. The reversal of 630665101 is 101566036.

It is a cyclic number.

It is not a de Polignac number, because 630665101 - 2²³ = 622276493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630665101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630665501) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 86716 + ... + 93706.

It is an arithmetic number, because the mean of its divisors is an integer number (44049600).

Almost surely, 2^630665101 is an apocalyptic number.

It is an amenable number.

630665101 is a deficient number, since it is larger than the sum of its proper divisors (74128499).

630665101 is a wasteful number, since it uses less digits than its factorization.

630665101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 630665101 is about 25113.0464300929. The cubic root of 630665101 is about 857.5634571268.

The spelling of 630665101 in words is "six hundred thirty million, six hundred sixty-five thousand, one hundred one".