16501420112 has 10 divisors (see below), whose sum is σ = 31971501498. Its totient is φ = 8250710048.

The previous prime is 16501420049. The next prime is 16501420121. The reversal of 16501420112 is 21102410561.

It can be written as a sum of positive squares in only one way, i.e., 14141015056 + 2360405056 = 118916^2 + 48584^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515669363 + ... + 515669394.

Almost surely, 2^16501420112 is an apocalyptic number.

It is an amenable number.

16501420112 is a deficient number, since it is larger than the sum of its proper divisors (15470081386).

16501420112 is a wasteful number, since it uses less digits than its factorization.

16501420112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031338765 (or 1031338759 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 16501420112 its reverse (21102410561), we get a palindrome (37603830673).

The spelling of 16501420112 in words is "sixteen billion, five hundred one million, four hundred twenty thousand, one hundred twelve".