1610630660 has 48 divisors (see below), whose sum is σ = 3737010816. Its totient is φ = 579988992.

The previous prime is 1610630653. The next prime is 1610630663. The reversal of 1610630660 is 660360161.

It is a super-2 number, since 2×1610630660² = 5188262245864071200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1610630663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95162 + ... + 110801.

It is an arithmetic number, because the mean of its divisors is an integer number (77854392).

Almost surely, 2^1610630660 is an apocalyptic number.

1610630660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1610630660 is an abundant number, since it is smaller than the sum of its proper divisors (2126380156).

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

1610630660 is a wasteful number, since it uses less digits than its factorization.

1610630660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206012 (or 206010 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1610630660 is about 40132.6632557571. The cubic root of 1610630660 is about 1172.1917326594.

The spelling of 1610630660 in words is "one billion, six hundred ten million, six hundred thirty thousand, six hundred sixty".