133664186496 has 128 divisors (see below), whose sum is σ = 378997401600. Its totient is φ = 41615078400.

The previous prime is 133664186483. The next prime is 133664186501. The reversal of 133664186496 is 694681466331.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×133664186496² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 389001 + ... + 647031.

It is an arithmetic number, because the mean of its divisors is an integer number (2960917200).

Almost surely, 2^133664186496 is an apocalyptic number.

133664186496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133664186496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189498700800).

133664186496 is an abundant number, since it is smaller than the sum of its proper divisors (245333215104).

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

133664186496 is a wasteful number, since it uses less digits than its factorization.

133664186496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258138 (or 258126 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 57.

The spelling of 133664186496 in words is "one hundred thirty-three billion, six hundred sixty-four million, one hundred eighty-six thousand, four hundred ninety-six".