1645056427333 has 32 divisors (see below), whose sum is σ = 1828166204160. Its totient is φ = 1467656064000.

The previous prime is 1645056427327. The next prime is 1645056427361. The reversal of 1645056427333 is 3337246505461.

It is a cyclic number.

It is not a de Polignac number, because 1645056427333 - 2²¹ = 1645054330181 is a prime.

It is a super-2 number, since 2×1645056427333² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1645056427373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1030090891 + ... + 1030092487.

It is an arithmetic number, because the mean of its divisors is an integer number (57130193880).

Almost surely, 2^{1645056427333} is an apocalyptic number.

It is an amenable number.

1645056427333 is a deficient number, since it is larger than the sum of its proper divisors (183109776827).

1645056427333 is a wasteful number, since it uses less digits than its factorization.

1645056427333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189.

The product of its (nonzero) digits is 5443200, while the sum is 49.

The spelling of 1645056427333 in words is "one trillion, six hundred forty-five billion, fifty-six million, four hundred twenty-seven thousand, three hundred thirty-three".