133670256340 has 24 divisors (see below), whose sum is σ = 282132457992. Its totient is φ = 53196689280.

The previous prime is 133670256323. The next prime is 133670256383. The reversal of 133670256340 is 43652076331.

It can be written as a sum of positive squares in 4 ways, for example, as 21362160964 + 112308095376 = 146158^2 + 335124^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133670256293 and 133670256302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16959291 + ... + 16967170.

It is an arithmetic number, because the mean of its divisors is an integer number (11755519083).

Almost surely, 2^133670256340 is an apocalyptic number.

133670256340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133670256340 is an abundant number, since it is smaller than the sum of its proper divisors (148462201652).

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

133670256340 is a wasteful number, since it uses less digits than its factorization.

133670256340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33926667 (or 33926665 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 40.

The spelling of 133670256340 in words is "one hundred thirty-three billion, six hundred seventy million, two hundred fifty-six thousand, three hundred forty".