33666479897 has 8 divisors (see below), whose sum is σ = 33814083072. Its totient is φ = 33519074400.

The previous prime is 33666479881. The next prime is 33666479921. The reversal of 33666479897 is 79897466633.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33666479897 - 2⁴ = 33666479881 is a prime.

It is a super-2 number, since 2×33666479897² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33666479597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297248 + ... + 394574.

It is an arithmetic number, because the mean of its divisors is an integer number (4226760384).

Almost surely, 2^33666479897 is an apocalyptic number.

It is an amenable number.

33666479897 is a deficient number, since it is larger than the sum of its proper divisors (147603175).

33666479897 is a wasteful number, since it uses less digits than its factorization.

33666479897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98839.

The product of its digits is 246903552, while the sum is 68.

The spelling of 33666479897 in words is "thirty-three billion, six hundred sixty-six million, four hundred seventy-nine thousand, eight hundred ninety-seven".