1356225566 has 16 divisors (see below), whose sum is σ = 2102744880. Its totient is φ = 655687680.

The previous prime is 1356225553. The next prime is 1356225589. The reversal of 1356225566 is 6655226531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87011 + ... + 101406.

It is an arithmetic number, because the mean of its divisors is an integer number (131421555).

Almost surely, 2^1356225566 is an apocalyptic number.

1356225566 is a deficient number, since it is larger than the sum of its proper divisors (746519314).

1356225566 is a wasteful number, since it uses less digits than its factorization.

1356225566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188539.

The product of its digits is 324000, while the sum is 41.

The square root of 1356225566 is about 36826.9679175465. The cubic root of 1356225566 is about 1106.9057470631.

The spelling of 1356225566 in words is "one billion, three hundred fifty-six million, two hundred twenty-five thousand, five hundred sixty-six".