2162631552 has 64 divisors (see below), whose sum is σ = 5751298560. Its totient is φ = 720023040.

The previous prime is 2162631533. The next prime is 2162631553. The reversal of 2162631552 is 2551362612.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162631553) 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 7 ways as a sum of consecutive naturals, for example, 377703 + ... + 383385.

It is an arithmetic number, because the mean of its divisors is an integer number (89864040).

Almost surely, 2^2162631552 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 2162631552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2875649280).

2162631552 is an abundant number, since it is smaller than the sum of its proper divisors (3588667008).

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

2162631552 is an equidigital number, since it uses as much as digits as its factorization.

2162631552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691 (or 6679 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 2162631552 is about 46504.1025287017. The cubic root of 2162631552 is about 1293.1855553216.

The spelling of 2162631552 in words is "two billion, one hundred sixty-two million, six hundred thirty-one thousand, five hundred fifty-two".