630992194560 has 704 divisors, whose sum is σ = 2759971737600. Its totient is φ = 133129764864.

The previous prime is 630992194541. The next prime is 630992194577. The reversal of 630992194560 is 65491299036.

630992194560 is a `hidden beast` number, since 6 + 309 + 92 + 194 + 5 + 60 = 666.

It is a super-2 number, since 2×630992194560² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 630992194497 and 630992194506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12554761 + ... + 12604919.

It is an arithmetic number, because the mean of its divisors is an integer number (3920414400).

Almost surely, 2^630992194560 is an apocalyptic number.

630992194560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630992194560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379985868800).

630992194560 is an abundant number, since it is smaller than the sum of its proper divisors (2128979543040).

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

630992194560 is a wasteful number, since it uses less digits than its factorization.

630992194560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50213 (or 50189 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 630992194560 in words is "six hundred thirty billion, nine hundred ninety-two million, one hundred ninety-four thousand, five hundred sixty".