33020145705 has 16 divisors (see below), whose sum is σ = 52971641280. Its totient is φ = 17564275008.

The previous prime is 33020145689. The next prime is 33020145737. The reversal of 33020145705 is 50754102033.

It is not a de Polignac number, because 33020145705 - 2⁴ = 33020145689 is a prime.

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, 2898462 + ... + 2909831.

It is an arithmetic number, because the mean of its divisors is an integer number (3310727580).

Almost surely, 2^33020145705 is an apocalyptic number.

It is an amenable number.

33020145705 is a deficient number, since it is larger than the sum of its proper divisors (19951495575).

33020145705 is a wasteful number, since it uses less digits than its factorization.

33020145705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5808680.

The product of its (nonzero) digits is 12600, while the sum is 30.

Adding to 33020145705 its reverse (50754102033), we get a palindrome (83774247738).

The spelling of 33020145705 in words is "thirty-three billion, twenty million, one hundred forty-five thousand, seven hundred five".