16421942982 has 32 divisors (see below), whose sum is σ = 34790166144. Its totient is φ = 5149865600.

The previous prime is 16421942951. The next prime is 16421942987. The reversal of 16421942982 is 28924912461.

It is a super-2 number, since 2×16421942982² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16421942987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226357 + ... + 289967.

It is an arithmetic number, because the mean of its divisors is an integer number (1087192692).

Almost surely, 2^16421942982 is an apocalyptic number.

16421942982 is an abundant number, since it is smaller than the sum of its proper divisors (18368223162).

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

16421942982 is a wasteful number, since it uses less digits than its factorization.

16421942982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66164.

The product of its digits is 497664, while the sum is 48.

The spelling of 16421942982 in words is "sixteen billion, four hundred twenty-one million, nine hundred forty-two thousand, nine hundred eighty-two".