630251646151990 has 8 divisors (see below), whose sum is σ = 1134452963073600. Its totient is φ = 252100658460792.

The previous prime is 630251646151957. The next prime is 630251646151991. The reversal of 630251646151990 is 99151646152036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×630251646151990² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630251646151991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31512582307590 + ... + 31512582307609.

It is an arithmetic number, because the mean of its divisors is an integer number (141806620384200).

Almost surely, 2^{630251646151990} is an apocalyptic number.

630251646151990 is a deficient number, since it is larger than the sum of its proper divisors (504201316921610).

630251646151990 is a wasteful number, since it uses less digits than its factorization.

630251646151990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63025164615206.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 630251646151990 in words is "six hundred thirty trillion, two hundred fifty-one billion, six hundred forty-six million, one hundred fifty-one thousand, nine hundred ninety".