5266632640 has 224 divisors, whose sum is σ = 13776350400. Its totient is φ = 1910046720.

The previous prime is 5266632607. The next prime is 5266632641. The reversal of 5266632640 is 462366625.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 5266632593 and 5266632602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5266632641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19578426 + ... + 19578694.

Almost surely, 2^5266632640 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 5266632640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6888175200).

5266632640 is an abundant number, since it is smaller than the sum of its proper divisors (8509717760).

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

5266632640 is a wasteful number, since it uses less digits than its factorization.

5266632640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 5266632640 is about 72571.5690887279. The cubic root of 5266632640 is about 1739.8468002697.

The spelling of 5266632640 in words is "five billion, two hundred sixty-six million, six hundred thirty-two thousand, six hundred forty".