133401769656 has 32 divisors (see below), whose sum is σ = 333517171200. Its totient is φ = 44465556960.

The previous prime is 133401769639. The next prime is 133401769661. The reversal of 133401769656 is 656967104331.

It is a junction number, because it is equal to n+sod(n) for n = 133401769599 and 133401769608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642471 + ... + 824361.

It is an arithmetic number, because the mean of its divisors is an integer number (10422411600).

Almost surely, 2^133401769656 is an apocalyptic number.

It is an amenable number.

133401769656 is an abundant number, since it is smaller than the sum of its proper divisors (200115401544).

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

133401769656 is a wasteful number, since it uses less digits than its factorization.

133401769656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212459 (or 212455 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 133401769656 in words is "one hundred thirty-three billion, four hundred one million, seven hundred sixty-nine thousand, six hundred fifty-six".