133840173544 has 64 divisors (see below), whose sum is σ = 313775285760. Its totient is φ = 51995163840.

The previous prime is 133840173499. The next prime is 133840173547. The reversal of 133840173544 is 445371048331.

It is a self number, because there is not a number n which added to its sum of digits gives 133840173544.

It is not an unprimeable number, because it can be changed into a prime (133840173547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99322 + ... + 526825.

It is an arithmetic number, because the mean of its divisors is an integer number (4902738840).

Almost surely, 2^133840173544 is an apocalyptic number.

133840173544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

133840173544 is an abundant number, since it is smaller than the sum of its proper divisors (179935112216).

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

133840173544 is a wasteful number, since it uses less digits than its factorization.

133840173544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626518 (or 626514 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 133840173544 in words is "one hundred thirty-three billion, eight hundred forty million, one hundred seventy-three thousand, five hundred forty-four".