1653670080 has 140 divisors (see below), whose sum is σ = 5882487600. Its totient is φ = 440971776.

The previous prime is 1653670079. The next prime is 1653670091. The reversal of 1653670080 is 800763561.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5980 + ... + 57819.

Almost surely, 2^1653670080 is an apocalyptic number.

1653670080 is a gapful number since it is divisible by the number (10) 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 1653670080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2941243800).

1653670080 is an abundant number, since it is smaller than the sum of its proper divisors (4228817520).

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

1653670080 is an equidigital number, since it uses as much as digits as its factorization.

1653670080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63828 (or 63809 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1653670080 is about 40665.3424921025. The cubic root of 1653670080 is about 1182.5412244805.

The spelling of 1653670080 in words is "one billion, six hundred fifty-three million, six hundred seventy thousand, eighty".