162640307857 has 8 divisors (see below), whose sum is σ = 175375942560. Its totient is φ = 150322235040.

The previous prime is 162640307803. The next prime is 162640307899. The reversal of 162640307857 is 758703046261.

162640307857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162640307857 - 2³¹ = 160492824209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162640307857.

It is not an unprimeable number, because it can be changed into a prime (162640337857) 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 7 ways as a sum of consecutive naturals, for example, 104389663 + ... + 104391220.

It is an arithmetic number, because the mean of its divisors is an integer number (21921992820).

Almost surely, 2^162640307857 is an apocalyptic number.

It is an amenable number.

162640307857 is a deficient number, since it is larger than the sum of its proper divisors (12735634703).

162640307857 is a wasteful number, since it uses less digits than its factorization.

162640307857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208780943.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 162640307857 in words is "one hundred sixty-two billion, six hundred forty million, three hundred seven thousand, eight hundred fifty-seven".