2136623346 has 160 divisors (see below), whose sum is σ = 5671512000. Its totient is φ = 592686720.

The previous prime is 2136623329. The next prime is 2136623353. The reversal of 2136623346 is 6433266312.

2136623346 is a `hidden beast` number, since 21 + 3 + 6 + 623 + 3 + 4 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2136623346.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3451425 + ... + 3452043.

It is an arithmetic number, because the mean of its divisors is an integer number (35446950).

Almost surely, 2^2136623346 is an apocalyptic number.

2136623346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2136623346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2835756000).

2136623346 is an abundant number, since it is smaller than the sum of its proper divisors (3534888654).

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

2136623346 is a wasteful number, since it uses less digits than its factorization.

2136623346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 797 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 2136623346 is about 46223.6232461282. The cubic root of 2136623346 is about 1287.9806046389.

Adding to 2136623346 its reverse (6433266312), we get a palindrome (8569889658).

The spelling of 2136623346 in words is "two billion, one hundred thirty-six million, six hundred twenty-three thousand, three hundred forty-six".