133211299978 has 8 divisors (see below), whose sum is σ = 200000777472. Its totient is φ = 66544374156.

The previous prime is 133211299961. The next prime is 133211300009. The reversal of 133211299978 is 879992112331.

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

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, 30635200 + ... + 30639547.

It is an arithmetic number, because the mean of its divisors is an integer number (25000097184).

Almost surely, 2^133211299978 is an apocalyptic number.

133211299978 is a deficient number, since it is larger than the sum of its proper divisors (66789477494).

133211299978 is a wasteful number, since it uses less digits than its factorization.

133211299978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61275836.

The product of its digits is 1469664, while the sum is 55.

The spelling of 133211299978 in words is "one hundred thirty-three billion, two hundred eleven million, two hundred ninety-nine thousand, nine hundred seventy-eight".