630163651 has 6 divisors (see below), whose sum is σ = 682366740. Its totient is φ = 581689368.

The previous prime is 630163631. The next prime is 630163661. The reversal of 630163651 is 156361036.

It is not a de Polignac number, because 630163651 - 2¹⁵ = 630130883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630163631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1864221 + ... + 1864558.

It is an arithmetic number, because the mean of its divisors is an integer number (113727790).

Almost surely, 2^630163651 is an apocalyptic number.

630163651 is a deficient number, since it is larger than the sum of its proper divisors (52203089).

630163651 is a wasteful number, since it uses less digits than its factorization.

630163651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728805 (or 3728792 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 630163651 is about 25103.0605902946. The cubic root of 630163651 is about 857.3361102522.

The spelling of 630163651 in words is "six hundred thirty million, one hundred sixty-three thousand, six hundred fifty-one".