33397666223978 has 8 divisors (see below), whose sum is σ = 57253142098272. Its totient is φ = 14313285524556.

The previous prime is 33397666223813. The next prime is 33397666223989. The reversal of 33397666223978 is 87932266679333.

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

It is a super-2 number, since 2×33397666223978² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192773793700 + ... + 1192773793727.

It is an arithmetic number, because the mean of its divisors is an integer number (7156642762284).

Almost surely, 2^{33397666223978} is an apocalyptic number.

33397666223978 is a deficient number, since it is larger than the sum of its proper divisors (23855475874294).

33397666223978 is a wasteful number, since it uses less digits than its factorization.

33397666223978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385547587436.

The product of its digits is 2222131968, while the sum is 74.

The spelling of 33397666223978 in words is "thirty-three trillion, three hundred ninety-seven billion, six hundred sixty-six million, two hundred twenty-three thousand, nine hundred seventy-eight".