2156367312 has 160 divisors (see below), whose sum is σ = 7149720960. Its totient is φ = 614983680.

The previous prime is 2156367287. The next prime is 2156367313. The reversal of 2156367312 is 2137636512.

2156367312 is a `hidden beast` number, since 2 + 1 + 5 + 636 + 7 + 3 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156367313) 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, 67438 + ... + 94130.

It is an arithmetic number, because the mean of its divisors is an integer number (44685756).

Almost surely, 2^2156367312 is an apocalyptic number.

2156367312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156367312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3574860480).

2156367312 is an abundant number, since it is smaller than the sum of its proper divisors (4993353648).

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

2156367312 is a wasteful number, since it uses less digits than its factorization.

2156367312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26738 (or 26726 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 2156367312 is about 46436.7022084902. The cubic root of 2156367312 is about 1291.9357417392.

The spelling of 2156367312 in words is "two billion, one hundred fifty-six million, three hundred sixty-seven thousand, three hundred twelve".