6231552640 has 128 divisors (see below), whose sum is σ = 15816442320. Its totient is φ = 2339635200.

The previous prime is 6231552599. The next prime is 6231552689. The reversal of 6231552640 is 462551326.

It can be written as a sum of positive squares in 8 ways, for example, as 4454761536 + 1776791104 = 66744^2 + 42152^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 6231552596 and 6231552605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6538404 + ... + 6539356.

Almost surely, 2^6231552640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6231552640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7908221160).

6231552640 is an abundant number, since it is smaller than the sum of its proper divisors (9584889680).

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

6231552640 is a wasteful number, since it uses less digits than its factorization.

6231552640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 6231552640 is about 78940.1839369532. The cubic root of 6231552640 is about 1840.2016792167.

The spelling of 6231552640 in words is "six billion, two hundred thirty-one million, five hundred fifty-two thousand, six hundred forty".