16031432020 has 24 divisors (see below), whose sum is σ = 35437903200. Its totient is φ = 6075068832.

The previous prime is 16031431993. The next prime is 16031432051. The reversal of 16031432020 is 2023413061.

It is a super-2 number, since 2×16031432020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16031431982 and 16031432000.

It is a congruent number.

It is an unprimeable number.

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, 21093610 + ... + 21094369.

It is an arithmetic number, because the mean of its divisors is an integer number (1476579300).

Almost surely, 2^16031432020 is an apocalyptic number.

16031432020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16031432020 is an abundant number, since it is smaller than the sum of its proper divisors (19406471180).

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

16031432020 is a wasteful number, since it uses less digits than its factorization.

16031432020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42188007 (or 42188005 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 16031432020 its reverse (2023413061), we get a palindrome (18054845081).

The spelling of 16031432020 in words is "sixteen billion, thirty-one million, four hundred thirty-two thousand, twenty".