133995106956 has 12 divisors (see below), whose sum is σ = 312655249592. Its totient is φ = 44665035648.

The previous prime is 133995106943. The next prime is 133995106961. The reversal of 133995106956 is 659601599331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 133995106896 and 133995106905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5583129445 + ... + 5583129468.

Almost surely, 2^133995106956 is an apocalyptic number.

It is an amenable number.

133995106956 is an abundant number, since it is smaller than the sum of its proper divisors (178660142636).

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

133995106956 is a wasteful number, since it uses less digits than its factorization.

133995106956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11166258920 (or 11166258918 counting only the distinct ones).

The product of its (nonzero) digits is 5904900, while the sum is 57.

The spelling of 133995106956 in words is "one hundred thirty-three billion, nine hundred ninety-five million, one hundred six thousand, nine hundred fifty-six".