133665591360 has 112 divisors (see below), whose sum is σ = 485015170176. Its totient is φ = 30552133632.

The previous prime is 133665591349. The next prime is 133665591379. The reversal of 133665591360 is 63195566331.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 9938637 + ... + 9952076.

Almost surely, 2^133665591360 is an apocalyptic number.

133665591360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133665591360 is an abundant number, since it is smaller than the sum of its proper divisors (351349578816).

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

133665591360 is a wasteful number, since it uses less digits than its factorization.

133665591360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19890740 (or 19890730 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 48.

The spelling of 133665591360 in words is "one hundred thirty-three billion, six hundred sixty-five million, five hundred ninety-one thousand, three hundred sixty".