33399069666 has 16 divisors (see below), whose sum is σ = 67422422304. Its totient is φ = 11028976064.

The previous prime is 33399069637. The next prime is 33399069673. The reversal of 33399069666 is 66696099333.

It is a super-2 number, since 2×33399069666² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

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, 26011095 + ... + 26012378.

It is an arithmetic number, because the mean of its divisors is an integer number (4213901394).

Almost surely, 2^33399069666 is an apocalyptic number.

33399069666 is an abundant number, since it is smaller than the sum of its proper divisors (34023352638).

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

33399069666 is a wasteful number, since it uses less digits than its factorization.

33399069666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52023585.

The product of its (nonzero) digits is 25509168, while the sum is 60.

The spelling of 33399069666 in words is "thirty-three billion, three hundred ninety-nine million, sixty-nine thousand, six hundred sixty-six".