1226575216156 has 12 divisors (see below), whose sum is σ = 2259480661480. Its totient is φ = 581009312880.

The previous prime is 1226575216127. The next prime is 1226575216187. The reversal of 1226575216156 is 6516125756221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8069573715 + ... + 8069573866.

Almost surely, 2^{1226575216156} is an apocalyptic number.

It is an amenable number.

1226575216156 is a deficient number, since it is larger than the sum of its proper divisors (1032905445324).

1226575216156 is a wasteful number, since it uses less digits than its factorization.

1226575216156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16139147604 (or 16139147602 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 49.

The spelling of 1226575216156 in words is "one trillion, two hundred twenty-six billion, five hundred seventy-five million, two hundred sixteen thousand, one hundred fifty-six".