1641163260 has 48 divisors (see below), whose sum is σ = 5013009792. Its totient is φ = 397857600.

The previous prime is 1641163259. The next prime is 1641163261. The reversal of 1641163260 is 623611461.

1641163260 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1641163259) and next prime (1641163261).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641163261) 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, 1242646 + ... + 1243965.

It is an arithmetic number, because the mean of its divisors is an integer number (104437704).

Almost surely, 2^1641163260 is an apocalyptic number.

1641163260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1641163260 is an abundant number, since it is smaller than the sum of its proper divisors (3371846532).

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

1641163260 is a wasteful number, since it uses less digits than its factorization.

1641163260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486634 (or 2486632 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1641163260 is about 40511.2732458510. The cubic root of 1641163260 is about 1179.5524636281.

The spelling of 1641163260 in words is "one billion, six hundred forty-one million, one hundred sixty-three thousand, two hundred sixty".