162640307877 has 8 divisors (see below), whose sum is σ = 216928301280. Its totient is φ = 108389593200.

The previous prime is 162640307803. The next prime is 162640307899. The reversal of 162640307877 is 778703046261.

It is a happy number.

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

It is not a de Polignac number, because 162640307877 - 2¹⁹ = 162639783589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162640307377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9309499 + ... + 9326952.

It is an arithmetic number, because the mean of its divisors is an integer number (27116037660).

Almost surely, 2^162640307877 is an apocalyptic number.

It is an amenable number.

162640307877 is a deficient number, since it is larger than the sum of its proper divisors (54287993403).

162640307877 is a wasteful number, since it uses less digits than its factorization.

162640307877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18639363.

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 162640307877 in words is "one hundred sixty-two billion, six hundred forty million, three hundred seven thousand, eight hundred seventy-seven".