1630661502 has 16 divisors (see below), whose sum is σ = 3266177040. Its totient is φ = 542744832.

The previous prime is 1630661479. The next prime is 1630661519. The reversal of 1630661502 is 2051660361.

It is a self number, because there is not a number n which added to its sum of digits gives 1630661502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197877 + ... + 205952.

It is an arithmetic number, because the mean of its divisors is an integer number (204136065).

Almost surely, 2^1630661502 is an apocalyptic number.

1630661502 is an abundant number, since it is smaller than the sum of its proper divisors (1635515538).

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

1630661502 is a wasteful number, since it uses less digits than its factorization.

1630661502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404507.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1630661502 is about 40381.4499739670. The cubic root of 1630661502 is about 1177.0311034621.

The spelling of 1630661502 in words is "one billion, six hundred thirty million, six hundred sixty-one thousand, five hundred two".