33980565345 has 32 divisors (see below), whose sum is σ = 58213935360. Its totient is φ = 16865249280.

The previous prime is 33980565343. The next prime is 33980565347. The reversal of 33980565345 is 54356508933.

It is an interprime number because it is at equal distance from previous prime (33980565343) and next prime (33980565347).

It is not a de Polignac number, because 33980565345 - 2¹ = 33980565343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33980565343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 725941 + ... + 771330.

It is an arithmetic number, because the mean of its divisors is an integer number (1819185480).

Almost surely, 2^33980565345 is an apocalyptic number.

It is an amenable number.

33980565345 is a deficient number, since it is larger than the sum of its proper divisors (24233370015).

33980565345 is a wasteful number, since it uses less digits than its factorization.

33980565345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497385.

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 33980565345 in words is "thirty-three billion, nine hundred eighty million, five hundred sixty-five thousand, three hundred forty-five".