2136444222066 has 64 divisors (see below), whose sum is σ = 5332042460160. Its totient is φ = 554420064960.

The previous prime is 2136444221981. The next prime is 2136444222097. The reversal of 2136444222066 is 6602224446312.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1572556 + ... + 2597271.

It is an arithmetic number, because the mean of its divisors is an integer number (83313163440).

Almost surely, 2^{2136444222066} is an apocalyptic number.

2136444222066 is an abundant number, since it is smaller than the sum of its proper divisors (3195598238094).

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

2136444222066 is a wasteful number, since it uses less digits than its factorization.

2136444222066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170959.

The product of its (nonzero) digits is 663552, while the sum is 42.

Adding to 2136444222066 its reverse (6602224446312), we get a palindrome (8738668668378).

The spelling of 2136444222066 in words is "two trillion, one hundred thirty-six billion, four hundred forty-four million, two hundred twenty-two thousand, sixty-six".