5571907920 has 160 divisors (see below), whose sum is σ = 19435660800. Its totient is φ = 1466989056.

The previous prime is 5571907919. The next prime is 5571907921. The reversal of 5571907920 is 297091755.

5571907920 is a `hidden beast` number, since 5 + 571 + 9 + 0 + 79 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5571907919) and next prime (5571907921).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5571907921) 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, 154314 + ... + 186966.

It is an arithmetic number, because the mean of its divisors is an integer number (121472880).

Almost surely, 2^5571907920 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 5571907920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9717830400).

5571907920 is an abundant number, since it is smaller than the sum of its proper divisors (13863752880).

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

5571907920 is a wasteful number, since it uses less digits than its factorization.

5571907920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32754 (or 32742 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 45.

The square root of 5571907920 is about 74645.2136442786. The cubic root of 5571907920 is about 1772.8336111789.

The spelling of 5571907920 in words is "five billion, five hundred seventy-one million, nine hundred seven thousand, nine hundred twenty".