1155644653222 has 4 divisors (see below), whose sum is σ = 1733466979836. Its totient is φ = 577822326610.

The previous prime is 1155644653187. The next prime is 1155644653253. The reversal of 1155644653222 is 2223564465511.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288911163304 + ... + 288911163307.

It is an arithmetic number, because the mean of its divisors is an integer number (433366744959).

Almost surely, 2^{1155644653222} is an apocalyptic number.

1155644653222 is a deficient number, since it is larger than the sum of its proper divisors (577822326614).

1155644653222 is an equidigital number, since it uses as much as digits as its factorization.

1155644653222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577822326613.

The product of its digits is 1728000, while the sum is 46.

The spelling of 1155644653222 in words is "one trillion, one hundred fifty-five billion, six hundred forty-four million, six hundred fifty-three thousand, two hundred twenty-two".