33157747120 has 20 divisors (see below), whose sum is σ = 77091762240. Its totient is φ = 13263098816.

The previous prime is 33157747111. The next prime is 33157747141. The reversal of 33157747120 is 2174775133.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207235840 + ... + 207235999.

It is an arithmetic number, because the mean of its divisors is an integer number (3854588112).

Almost surely, 2^33157747120 is an apocalyptic number.

It is an amenable number.

33157747120 is an abundant number, since it is smaller than the sum of its proper divisors (43934015120).

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

33157747120 is a wasteful number, since it uses less digits than its factorization.

33157747120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414471852 (or 414471846 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 40.

The spelling of 33157747120 in words is "thirty-three billion, one hundred fifty-seven million, seven hundred forty-seven thousand, one hundred twenty".