33625121264 has 80 divisors (see below), whose sum is σ = 76779276288. Its totient is φ = 13966995456.

The previous prime is 33625121251. The next prime is 33625121273. The reversal of 33625121264 is 46212152633.

It is a super-2 number, since 2×33625121264² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511184 + ... + 573200.

Almost surely, 2^33625121264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33625121264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38389638144).

33625121264 is an abundant number, since it is smaller than the sum of its proper divisors (43154155024).

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

33625121264 is a wasteful number, since it uses less digits than its factorization.

33625121264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62182 (or 62176 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

Adding to 33625121264 its reverse (46212152633), we get a palindrome (79837273897).

The spelling of 33625121264 in words is "thirty-three billion, six hundred twenty-five million, one hundred twenty-one thousand, two hundred sixty-four".