162680021 has 8 divisors (see below), whose sum is σ = 196856640. Its totient is φ = 131237568.

The previous prime is 162679991. The next prime is 162680027. The reversal of 162680021 is 120086261.

162680021 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 not a de Polignac number, because 162680021 - 2¹⁸ = 162417877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162680027) 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, 683411 + ... + 683648.

It is an arithmetic number, because the mean of its divisors is an integer number (24607080).

Almost surely, 2^162680021 is an apocalyptic number.

It is an amenable number.

162680021 is a deficient number, since it is larger than the sum of its proper divisors (34176619).

162680021 is a wasteful number, since it uses less digits than its factorization.

162680021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367083.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 162680021 is about 12754.6078340339. The cubic root of 162680021 is about 545.8978785872.

The spelling of 162680021 in words is "one hundred sixty-two million, six hundred eighty thousand, twenty-one".