168345070840 has 16 divisors (see below), whose sum is σ = 378776409480. Its totient is φ = 67338028320.

The previous prime is 168345070837. The next prime is 168345070849. The reversal of 168345070840 is 48070543861.

It is a happy number.

It is a super-2 number, since 2×168345070840² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168345070849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2104313346 + ... + 2104313425.

Almost surely, 2^168345070840 is an apocalyptic number.

168345070840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168345070840 is an abundant number, since it is smaller than the sum of its proper divisors (210431338640).

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

168345070840 is a wasteful number, since it uses less digits than its factorization.

168345070840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4208626782 (or 4208626778 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 168345070840 in words is "one hundred sixty-eight billion, three hundred forty-five million, seventy thousand, eight hundred forty".