1653312512 has 44 divisors (see below), whose sum is σ = 3478999320. Its totient is φ = 783138816.

The previous prime is 1653312503. The next prime is 1653312527. The reversal of 1653312512 is 2152133561.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23033 + ... + 61944.

Almost surely, 2^1653312512 is an apocalyptic number.

It is an amenable number.

1653312512 is an abundant number, since it is smaller than the sum of its proper divisors (1825686808).

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

1653312512 is an equidigital number, since it uses as much as digits as its factorization.

1653312512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85016 (or 84998 counting only the distinct ones).

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

The square root of 1653312512 is about 40660.9457833927. The cubic root of 1653312512 is about 1182.4559859181.

The spelling of 1653312512 in words is "one billion, six hundred fifty-three million, three hundred twelve thousand, five hundred twelve".