164068440685240 has 128 divisors (see below), whose sum is σ = 464010254991360. Its totient is φ = 50820170678784.

The previous prime is 164068440685207. The next prime is 164068440685291. The reversal of 164068440685240 is 42586044860461.

It is a super-2 number, since 2×164068440685240² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 479336872 + ... + 479679031.

It is an arithmetic number, because the mean of its divisors is an integer number (3625080117120).

Almost surely, 2^{164068440685240} is an apocalyptic number.

164068440685240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164068440685240 is an abundant number, since it is smaller than the sum of its proper divisors (299941814306120).

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

164068440685240 is a wasteful number, since it uses less digits than its factorization.

164068440685240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959015981 (or 959015977 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 58.

The spelling of 164068440685240 in words is "one hundred sixty-four trillion, sixty-eight billion, four hundred forty million, six hundred eighty-five thousand, two hundred forty".