33312180066 has 32 divisors (see below), whose sum is σ = 74371385088. Its totient is φ = 9859841040.

The previous prime is 33312180053. The next prime is 33312180073. The reversal of 33312180066 is 66008121333.

It is a super-2 number, since 2×33312180066² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 5866116 + ... + 5871791.

It is an arithmetic number, because the mean of its divisors is an integer number (2324105784).

Almost surely, 2^33312180066 is an apocalyptic number.

33312180066 is an abundant number, since it is smaller than the sum of its proper divisors (41059205022).

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

33312180066 is a wasteful number, since it uses less digits than its factorization.

33312180066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11737966.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 33312180066 in words is "thirty-three billion, three hundred twelve million, one hundred eighty thousand, sixty-six".