1630512650 has 24 divisors (see below), whose sum is σ = 3266043564. Its totient is φ = 602035200.

The previous prime is 1630512649. The next prime is 1630512661. The reversal of 1630512650 is 562150361.

It can be written as a sum of positive squares in 6 ways, for example, as 33790969 + 1596721681 = 5813^2 + 39959^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1253591 + ... + 1254890.

Almost surely, 2^1630512650 is an apocalyptic number.

1630512650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1630512650 is an abundant number, since it is smaller than the sum of its proper divisors (1635530914).

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

1630512650 is a wasteful number, since it uses less digits than its factorization.

1630512650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508506 (or 2508501 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1630512650 is about 40379.6068579178. The cubic root of 1630512650 is about 1176.9952879837.

The spelling of 1630512650 in words is "one billion, six hundred thirty million, five hundred twelve thousand, six hundred fifty".