6265652640 has 384 divisors, whose sum is σ = 22404211200. Its totient is φ = 1460355072.

The previous prime is 6265652621. The next prime is 6265652647. The reversal of 6265652640 is 462565626.

It is a junction number, because it is equal to n+sod(n) for n = 6265652592 and 6265652601.

It is not an unprimeable number, because it can be changed into a prime (6265652647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21384334 + ... + 21384626.

It is an arithmetic number, because the mean of its divisors is an integer number (58344300).

Almost surely, 2^6265652640 is an apocalyptic number.

6265652640 is a gapful number since it is divisible by the number (60) 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 6265652640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11202105600).

6265652640 is an abundant number, since it is smaller than the sum of its proper divisors (16138558560).

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

6265652640 is a wasteful number, since it uses less digits than its factorization.

6265652640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The square root of 6265652640 is about 79155.8755873498. The cubic root of 6265652640 is about 1843.5521958973.

The spelling of 6265652640 in words is "six billion, two hundred sixty-five million, six hundred fifty-two thousand, six hundred forty".