33532066661 has 4 divisors (see below), whose sum is σ = 33545255232. Its totient is φ = 33518878092.

The previous prime is 33532066657. The next prime is 33532066663. The reversal of 33532066661 is 16666023533.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16666023533 = 727 ⋅22924379.

It is a cyclic number.

It is not a de Polignac number, because 33532066661 - 2² = 33532066657 is a prime.

It is a super-2 number, since 2×33532066661² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33532066663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6590471 + ... + 6595556.

It is an arithmetic number, because the mean of its divisors is an integer number (8386313808).

Almost surely, 2^33532066661 is an apocalyptic number.

It is an amenable number.

33532066661 is a deficient number, since it is larger than the sum of its proper divisors (13188571).

33532066661 is a wasteful number, since it uses less digits than its factorization.

33532066661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13188570.

The product of its (nonzero) digits is 349920, while the sum is 41.

The spelling of 33532066661 in words is "thirty-three billion, five hundred thirty-two million, sixty-six thousand, six hundred sixty-one".