1641532564 has 12 divisors (see below), whose sum is σ = 3283065184. Its totient is φ = 703513944.

The previous prime is 1641532537. The next prime is 1641532579. The reversal of 1641532564 is 4652351461.

1641532564 is an admirable number.

It is a congruent number.

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, 29313054 + ... + 29313109.

Almost surely, 2^1641532564 is an apocalyptic number.

1641532564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1641532564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1641532564 is a wasteful number, since it uses less digits than its factorization.

1641532564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58626174 (or 58626172 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 1641532564 is about 40515.8310293643. The cubic root of 1641532564 is about 1179.6409335533.

The spelling of 1641532564 in words is "one billion, six hundred forty-one million, five hundred thirty-two thousand, five hundred sixty-four".