162998830621 has 4 divisors (see below), whose sum is σ = 177816906144. Its totient is φ = 148180755100.

The previous prime is 162998830609. The next prime is 162998830627. The reversal of 162998830621 is 126038899261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 162998830621 - 2¹⁹ = 162998306333 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 (162998830627) 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, 7409037745 + ... + 7409037766.

It is an arithmetic number, because the mean of its divisors is an integer number (44454226536).

Almost surely, 2^162998830621 is an apocalyptic number.

162998830621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

162998830621 is a deficient number, since it is larger than the sum of its proper divisors (14818075523).

162998830621 is a wasteful number, since it uses less digits than its factorization.

162998830621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14818075522.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 162998830621 in words is "one hundred sixty-two billion, nine hundred ninety-eight million, eight hundred thirty thousand, six hundred twenty-one".