133534078916 has 18 divisors (see below), whose sum is σ = 271837232478. Its totient is φ = 57228890880.

The previous prime is 133534078913. The next prime is 133534078943. The reversal of 133534078916 is 619870435331.

It can be written as a sum of positive squares in only one way, i.e., 120927280516 + 12606798400 = 347746^2 + 112280^2 .

It is not an unprimeable number, because it can be changed into a prime (133534078913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340647965 + ... + 340648356.

It is an arithmetic number, because the mean of its divisors is an integer number (15102068471).

Almost surely, 2^133534078916 is an apocalyptic number.

It is an amenable number.

133534078916 is an abundant number, since it is smaller than the sum of its proper divisors (138303153562).

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

133534078916 is a wasteful number, since it uses less digits than its factorization.

133534078916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681296339 (or 681296330 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 133534078916 in words is "one hundred thirty-three billion, five hundred thirty-four million, seventy-eight thousand, nine hundred sixteen".