33145213255 has 32 divisors (see below), whose sum is σ = 49634519040. Its totient is φ = 20642853120.

The previous prime is 33145213249. The next prime is 33145213273. The reversal of 33145213255 is 55231254133.

It is not a de Polignac number, because 33145213255 - 2²¹ = 33143116103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33145213255.

It is a congruent number.

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, 383106 + ... + 461584.

It is an arithmetic number, because the mean of its divisors is an integer number (1551078720).

Almost surely, 2^33145213255 is an apocalyptic number.

33145213255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

33145213255 is a deficient number, since it is larger than the sum of its proper divisors (16489305785).

33145213255 is a wasteful number, since it uses less digits than its factorization.

33145213255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79599.

The product of its digits is 54000, while the sum is 34.

Adding to 33145213255 its reverse (55231254133), we get a palindrome (88376467388).

The spelling of 33145213255 in words is "thirty-three billion, one hundred forty-five million, two hundred thirteen thousand, two hundred fifty-five".