33151351040 has 72 divisors (see below), whose sum is σ = 79502508288. Its totient is φ = 13244733440.

The previous prime is 33151351033. The next prime is 33151351067. The reversal of 33151351040 is 4015315133.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089635 + ... + 1119645.

It is an arithmetic number, because the mean of its divisors is an integer number (1104201504).

Almost surely, 2^33151351040 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 33151351040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39751254144).

33151351040 is an abundant number, since it is smaller than the sum of its proper divisors (46351157248).

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

33151351040 is an equidigital number, since it uses as much as digits as its factorization.

33151351040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30895 (or 30881 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 33151351040 its reverse (4015315133), we get a palindrome (37166666173).

The spelling of 33151351040 in words is "thirty-three billion, one hundred fifty-one million, three hundred fifty-one thousand, forty".