33151042540 has 96 divisors (see below), whose sum is σ = 86843280384. Its totient is φ = 10327100160.

The previous prime is 33151042523. The next prime is 33151042553. The reversal of 33151042540 is 4524015133.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 33151042499 and 33151042508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3440169 + ... + 3449791.

It is an arithmetic number, because the mean of its divisors is an integer number (904617504).

Almost surely, 2^33151042540 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 33151042540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43421640192).

33151042540 is an abundant number, since it is smaller than the sum of its proper divisors (53692237844).

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

33151042540 is a wasteful number, since it uses less digits than its factorization.

33151042540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11887 (or 11885 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 33151042540 its reverse (4524015133), we get a palindrome (37675057673).

The spelling of 33151042540 in words is "thirty-three billion, one hundred fifty-one million, forty-two thousand, five hundred forty".