133587990016 has 80 divisors (see below), whose sum is σ = 290134961424. Its totient is φ = 61079445504.

The previous prime is 133587990007. The next prime is 133587990061. The reversal of 133587990016 is 610099785331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 618406 + ... + 805978.

Almost surely, 2^133587990016 is an apocalyptic number.

133587990016 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 133587990016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145067480712).

133587990016 is an abundant number, since it is smaller than the sum of its proper divisors (156546971408).

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

133587990016 is a wasteful number, since it uses less digits than its factorization.

133587990016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187711 (or 187695 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 133587990016 in words is "one hundred thirty-three billion, five hundred eighty-seven million, nine hundred ninety thousand, sixteen".