133400051344 has 80 divisors (see below), whose sum is σ = 296878506496. Its totient is φ = 56882995200.

The previous prime is 133400051333. The next prime is 133400051347. The reversal of 133400051344 is 443150004331.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (133400051347) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58328569 + ... + 58330855.

Almost surely, 2^133400051344 is an apocalyptic number.

133400051344 is a gapful number since it is divisible by the number (14) 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 133400051344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148439253248).

133400051344 is an abundant number, since it is smaller than the sum of its proper divisors (163478455152).

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

133400051344 is a wasteful number, since it uses less digits than its factorization.

133400051344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704 (or 4698 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 133400051344 its reverse (443150004331), we get a palindrome (576550055675).

The spelling of 133400051344 in words is "one hundred thirty-three billion, four hundred million, fifty-one thousand, three hundred forty-four".