7166311572 has 96 divisors (see below), whose sum is σ = 20279347200. Its totient is φ = 1925269632.

The previous prime is 7166311561. The next prime is 7166311577. The reversal of 7166311572 is 2751136617.

It is a super-2 number, since 2×7166311572² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7166311572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166311577) 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, 82554 + ... + 145422.

It is an arithmetic number, because the mean of its divisors is an integer number (211243200).

Almost surely, 2^7166311572 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 7166311572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10139673600).

7166311572 is an abundant number, since it is smaller than the sum of its proper divisors (13113035628).

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

7166311572 is a wasteful number, since it uses less digits than its factorization.

7166311572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62965 (or 62963 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 7166311572 is about 84654.0700261954. The cubic root of 7166311572 is about 1927.9624098805.

The spelling of 7166311572 in words is "seven billion, one hundred sixty-six million, three hundred eleven thousand, five hundred seventy-two".