1856220136706 has 32 divisors (see below), whose sum is σ = 3095452512768. Its totient is φ = 829022843520.

The previous prime is 1856220136703. The next prime is 1856220136723. The reversal of 1856220136706 is 6076310226581.

It is not an unprimeable number, because it can be changed into a prime (1856220136703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12675701 + ... + 12821303.

It is an arithmetic number, because the mean of its divisors is an integer number (96732891024).

Almost surely, 2^{1856220136706} is an apocalyptic number.

1856220136706 is a deficient number, since it is larger than the sum of its proper divisors (1239232376062).

1856220136706 is a wasteful number, since it uses less digits than its factorization.

1856220136706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161466.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 1856220136706 in words is "one trillion, eight hundred fifty-six billion, two hundred twenty million, one hundred thirty-six thousand, seven hundred six".