33153401440 has 48 divisors (see below), whose sum is σ = 79991416512. Its totient is φ = 12979201024.

The previous prime is 33153401383. The next prime is 33153401441. The reversal of 33153401440 is 4410435133.

It is a junction number, because it is equal to n+sod(n) for n = 33153401399 and 33153401408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33153401441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196829 + ... + 2211868.

It is an arithmetic number, because the mean of its divisors is an integer number (1666487844).

Almost surely, 2^33153401440 is an apocalyptic number.

It is an amenable number.

33153401440 is an abundant number, since it is smaller than the sum of its proper divisors (46838015072).

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

33153401440 is a wasteful number, since it uses less digits than its factorization.

33153401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408759 (or 4408751 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 33153401440 its reverse (4410435133), we get a palindrome (37563836573).

The spelling of 33153401440 in words is "thirty-three billion, one hundred fifty-three million, four hundred one thousand, four hundred forty".