33011199945 has 32 divisors (see below), whose sum is σ = 58788426240. Its totient is φ = 17575418880.

The previous prime is 33011199929. The next prime is 33011199997. The reversal of 33011199945 is 54999111033.

It is not a de Polignac number, because 33011199945 - 2⁴ = 33011199929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 33011199945.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134001 + ... + 289790.

It is an arithmetic number, because the mean of its divisors is an integer number (1837138320).

Almost surely, 2^33011199945 is an apocalyptic number.

It is an amenable number.

33011199945 is a deficient number, since it is larger than the sum of its proper divisors (25777226295).

33011199945 is a wasteful number, since it uses less digits than its factorization.

33011199945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424382 (or 424376 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The spelling of 33011199945 in words is "thirty-three billion, eleven million, one hundred ninety-nine thousand, nine hundred forty-five".