133579653218 has 32 divisors (see below), whose sum is σ = 220809240000. Its totient is φ = 60101084160.

The previous prime is 133579653191. The next prime is 133579653281. The reversal of 133579653218 is 812356975331.

It is a happy number.

It is a super-2 number, since 2×133579653218² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133579653218.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2917430 + ... + 2962862.

It is an arithmetic number, because the mean of its divisors is an integer number (6900288750).

Almost surely, 2^133579653218 is an apocalyptic number.

133579653218 is a deficient number, since it is larger than the sum of its proper divisors (87229586782).

133579653218 is a wasteful number, since it uses less digits than its factorization.

133579653218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46802.

The product of its digits is 4082400, while the sum is 53.

The spelling of 133579653218 in words is "one hundred thirty-three billion, five hundred seventy-nine million, six hundred fifty-three thousand, two hundred eighteen".