133630994478 has 64 divisors (see below), whose sum is σ = 289901348352. Its totient is φ = 40900823040.

The previous prime is 133630994449. The next prime is 133630994531. The reversal of 133630994478 is 874499036331.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3846775 + ... + 3881357.

It is an arithmetic number, because the mean of its divisors is an integer number (4529708568).

Almost surely, 2^133630994478 is an apocalyptic number.

133630994478 is an abundant number, since it is smaller than the sum of its proper divisors (156270353874).

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

133630994478 is a wasteful number, since it uses less digits than its factorization.

133630994478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35529.

The product of its (nonzero) digits is 11757312, while the sum is 57.

The spelling of 133630994478 in words is "one hundred thirty-three billion, six hundred thirty million, nine hundred ninety-four thousand, four hundred seventy-eight".