33210145345 has 16 divisors (see below), whose sum is σ = 43964503632. Its totient is φ = 23926256640.

The previous prime is 33210145343. The next prime is 33210145363. The reversal of 33210145345 is 54354101233.

It can be written as a sum of positive squares in 8 ways, for example, as 2143967809 + 31066177536 = 46303^2 + 176256^2 .

It is not a de Polignac number, because 33210145345 - 2¹ = 33210145343 is a prime.

It is a super-2 number, since 2×33210145345² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33210145343) 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, 6228132 + ... + 6233461.

It is an arithmetic number, because the mean of its divisors is an integer number (2747781477).

Almost surely, 2^33210145345 is an apocalyptic number.

It is an amenable number.

33210145345 is a deficient number, since it is larger than the sum of its proper divisors (10754358287).

33210145345 is a wasteful number, since it uses less digits than its factorization.

33210145345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12461652.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 33210145345 its reverse (54354101233), we get a palindrome (87564246578).

The spelling of 33210145345 in words is "thirty-three billion, two hundred ten million, one hundred forty-five thousand, three hundred forty-five".