1630160640 has 252 divisors, whose sum is σ = 5857789224. Its totient is φ = 434460672.

The previous prime is 1630160629. The next prime is 1630160657. The reversal of 1630160640 is 460610361.

1630160640 is a `hidden beast` number, since 1 + 6 + 3 + 0 + 16 + 0 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 932247 + ... + 933993.

Almost surely, 2^1630160640 is an apocalyptic number.

1630160640 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 1630160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2928894612).

1630160640 is an abundant number, since it is smaller than the sum of its proper divisors (4227628584).

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

1630160640 is an frugal number, since it uses more digits than its factorization.

1630160640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1630160640 is about 40375.2478630163. The cubic root of 1630160640 is about 1176.9105817146.

The spelling of 1630160640 in words is "one billion, six hundred thirty million, one hundred sixty thousand, six hundred forty".