1226633648545 has 16 divisors (see below), whose sum is σ = 1492191136512. Its totient is φ = 967820952960.

The previous prime is 1226633648491. The next prime is 1226633648573. The reversal of 1226633648545 is 5458463366221.

It is not a de Polignac number, because 1226633648545 - 2²⁷ = 1226499430817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9870264 + ... + 9993766.

It is an arithmetic number, because the mean of its divisors is an integer number (93261946032).

Almost surely, 2^{1226633648545} is an apocalyptic number.

It is an amenable number.

1226633648545 is a deficient number, since it is larger than the sum of its proper divisors (265557487967).

1226633648545 is a wasteful number, since it uses less digits than its factorization.

1226633648545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150792.

The product of its digits is 24883200, while the sum is 55.

The spelling of 1226633648545 in words is "one trillion, two hundred twenty-six billion, six hundred thirty-three million, six hundred forty-eight thousand, five hundred forty-five".