2136611620 has 192 divisors, whose sum is σ = 5519146752. Its totient is φ = 684288000.

The previous prime is 2136611573. The next prime is 2136611621. The reversal of 2136611620 is 261166312.

It is not an unprimeable number, because it can be changed into a prime (2136611621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6454855 + ... + 6455185.

It is an arithmetic number, because the mean of its divisors is an integer number (28745556).

Almost surely, 2^2136611620 is an apocalyptic number.

2136611620 is a gapful number since it is divisible by the number (20) 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 2136611620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2759573376).

2136611620 is an abundant number, since it is smaller than the sum of its proper divisors (3382535132).

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

2136611620 is a wasteful number, since it uses less digits than its factorization.

2136611620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2136611620 is about 46223.4964060487. The cubic root of 2136611620 is about 1287.9782484464.

Adding to 2136611620 its reverse (261166312), we get a palindrome (2397777932).

The spelling of 2136611620 in words is "two billion, one hundred thirty-six million, six hundred eleven thousand, six hundred twenty".