133681608190 has 32 divisors (see below), whose sum is σ = 259597076256. Its totient is φ = 49271664000.

The previous prime is 133681608133. The next prime is 133681608209. The reversal of 133681608190 is 91806186331.

It is a happy number.

It is a super-2 number, since 2×133681608190² (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 133681608190.

It is a congruent number.

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, 840061 + ... + 986440.

It is an arithmetic number, because the mean of its divisors is an integer number (8112408633).

Almost surely, 2^133681608190 is an apocalyptic number.

133681608190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133681608190 is a deficient number, since it is larger than the sum of its proper divisors (125915468066).

133681608190 is a wasteful number, since it uses less digits than its factorization.

133681608190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827084.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 133681608190 in words is "one hundred thirty-three billion, six hundred eighty-one million, six hundred eight thousand, one hundred ninety".