5571134640 has 140 divisors (see below), whose sum is σ = 19420651344. Its totient is φ = 1485620352.

The previous prime is 5571134627. The next prime is 5571134641. The reversal of 5571134640 is 464311755.

5571134640 is a `hidden beast` number, since 5 + 5 + 7 + 1 + 1 + 3 + 4 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5571134595 and 5571134604.

It is not an unprimeable number, because it can be changed into a prime (5571134641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 10557 + ... + 106083.

Almost surely, 2^5571134640 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 5571134640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9710325672).

5571134640 is an abundant number, since it is smaller than the sum of its proper divisors (13849516704).

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

5571134640 is an equidigital number, since it uses as much as digits as its factorization.

5571134640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95558 (or 95537 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 5571134640 is about 74640.0337620502. The cubic root of 5571134640 is about 1772.7515949756.

The spelling of 5571134640 in words is "five billion, five hundred seventy-one million, one hundred thirty-four thousand, six hundred forty".