16505006422 has 16 divisors (see below), whose sum is σ = 25576243200. Its totient is φ = 7980010920.

The previous prime is 16505006387. The next prime is 16505006459. The reversal of 16505006422 is 22460050561.

It is a super-2 number, since 2×16505006422² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24772 + ... + 183367.

It is an arithmetic number, because the mean of its divisors is an integer number (1598515200).

Almost surely, 2^16505006422 is an apocalyptic number.

16505006422 is a deficient number, since it is larger than the sum of its proper divisors (9071236778).

16505006422 is a wasteful number, since it uses less digits than its factorization.

16505006422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209451.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 16505006422 its reverse (22460050561), we get a palindrome (38965056983).

The spelling of 16505006422 in words is "sixteen billion, five hundred five million, six thousand, four hundred twenty-two".