33405001245 has 48 divisors (see below), whose sum is σ = 72189516672. Its totient is φ = 13882596480.

The previous prime is 33405001237. The next prime is 33405001247. The reversal of 33405001245 is 54210050433.

33405001245 is a `hidden beast` number, since 3 + 34 + 0 + 500 + 124 + 5 = 666.

It is not a de Polignac number, because 33405001245 - 2³ = 33405001237 is a prime.

It is a super-2 number, since 2×33405001245² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33405001247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4816882 + ... + 4823811.

It is an arithmetic number, because the mean of its divisors is an integer number (1503948264).

Almost surely, 2^33405001245 is an apocalyptic number.

33405001245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33405001245 is an abundant number, since it is smaller than the sum of its proper divisors (38784515427).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33405001245 is a wasteful number, since it uses less digits than its factorization.

33405001245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9640722 (or 9640719 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 33405001245 its reverse (54210050433), we get a palindrome (87615051678).

The spelling of 33405001245 in words is "thirty-three billion, four hundred five million, one thousand, two hundred forty-five".