33531996066 has 32 divisors (see below), whose sum is σ = 68972067648. Its totient is φ = 10861959360.

The previous prime is 33531996059. The next prime is 33531996067. The reversal of 33531996066 is 66069913533.

It is a super-2 number, since 2×33531996066² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33531996067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279045 + ... + 380696.

It is an arithmetic number, because the mean of its divisors is an integer number (2155377114).

Almost surely, 2^33531996066 is an apocalyptic number.

33531996066 is an abundant number, since it is smaller than the sum of its proper divisors (35440071582).

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

33531996066 is a wasteful number, since it uses less digits than its factorization.

33531996066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659986.

The product of its (nonzero) digits is 2361960, while the sum is 51.

The spelling of 33531996066 in words is "thirty-three billion, five hundred thirty-one million, nine hundred ninety-six thousand, sixty-six".