33365557797 has 16 divisors (see below), whose sum is σ = 52264930368. Its totient is φ = 18666046080.

The previous prime is 33365557783. The next prime is 33365557817. The reversal of 33365557797 is 79775556333.

It is not a de Polignac number, because 33365557797 - 2⁴ = 33365557781 is a prime.

It is a super-2 number, since 2×33365557797² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33365557797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33365557397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38887168 + ... + 38888025.

It is an arithmetic number, because the mean of its divisors is an integer number (3266558148).

Almost surely, 2^33365557797 is an apocalyptic number.

It is an amenable number.

33365557797 is a deficient number, since it is larger than the sum of its proper divisors (18899372571).

33365557797 is a wasteful number, since it uses less digits than its factorization.

33365557797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77775220.

The product of its digits is 62511750, while the sum is 60.

The spelling of 33365557797 in words is "thirty-three billion, three hundred sixty-five million, five hundred fifty-seven thousand, seven hundred ninety-seven".