1630970568 has 96 divisors (see below), whose sum is σ = 4492800000. Its totient is φ = 534428928.

The previous prime is 1630970557. The next prime is 1630970591. The reversal of 1630970568 is 8650790361.

It is a happy number.

1630970568 is a `hidden beast` number, since 1 + 630 + 9 + 7 + 0 + 5 + 6 + 8 = 666.

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 23 ways as a sum of consecutive naturals, for example, 1274553 + ... + 1275831.

It is an arithmetic number, because the mean of its divisors is an integer number (46800000).

Almost surely, 2^1630970568 is an apocalyptic number.

1630970568 is a gapful number since it is divisible by the number (18) 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 1630970568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246400000).

1630970568 is an abundant number, since it is smaller than the sum of its proper divisors (2861829432).

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

1630970568 is a wasteful number, since it uses less digits than its factorization.

1630970568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1630970568 is about 40385.2766240371. The cubic root of 1630970568 is about 1177.1054612843.

The spelling of 1630970568 in words is "one billion, six hundred thirty million, nine hundred seventy thousand, five hundred sixty-eight".