15553660222 has 4 divisors (see below), whose sum is σ = 23330490336. Its totient is φ = 7776830110.

The previous prime is 15553660207. The next prime is 15553660259. The reversal of 15553660222 is 22206635551.

15553660222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3888415054 + ... + 3888415057.

It is an arithmetic number, because the mean of its divisors is an integer number (5832622584).

Almost surely, 2^15553660222 is an apocalyptic number.

15553660222 is a deficient number, since it is larger than the sum of its proper divisors (7776830114).

15553660222 is an equidigital number, since it uses as much as digits as its factorization.

15553660222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776830113.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 15553660222 in words is "fifteen billion, five hundred fifty-three million, six hundred sixty thousand, two hundred twenty-two".