6561293232 has 40 divisors (see below), whose sum is σ = 18253855984. Its totient is φ = 2018859264.

The previous prime is 6561293177. The next prime is 6561293243. The reversal of 6561293232 is 2323921656.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5256823 + ... + 5258070.

Almost surely, 2^6561293232 is an apocalyptic number.

It is an amenable number.

6561293232 is an abundant number, since it is smaller than the sum of its proper divisors (11692562752).

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

6561293232 is a wasteful number, since it uses less digits than its factorization.

6561293232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10514917 (or 10514911 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 6561293232 is about 81001.8100538500. The cubic root of 6561293232 is about 1872.1033300038.

The spelling of 6561293232 in words is "six billion, five hundred sixty-one million, two hundred ninety-three thousand, two hundred thirty-two".