2156134662 has 96 divisors (see below), whose sum is σ = 5168427264. Its totient is φ = 644212800.

The previous prime is 2156134657. The next prime is 2156134663. The reversal of 2156134662 is 2664316512.

2156134662 is a `hidden beast` number, since 2 + 1 + 561 + 34 + 6 + 62 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156134663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6513837 + ... + 6514167.

It is an arithmetic number, because the mean of its divisors is an integer number (53837784).

Almost surely, 2^2156134662 is an apocalyptic number.

2156134662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156134662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2584213632).

2156134662 is an abundant number, since it is smaller than the sum of its proper divisors (3012292602).

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

2156134662 is a wasteful number, since it uses less digits than its factorization.

2156134662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 711 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2156134662 is about 46434.1971180724. The cubic root of 2156134662 is about 1291.8892778462.

The spelling of 2156134662 in words is "two billion, one hundred fifty-six million, one hundred thirty-four thousand, six hundred sixty-two".