16211137516 has 24 divisors (see below), whose sum is σ = 34128711680. Its totient is φ = 6581965392.

The previous prime is 16211137499. The next prime is 16211137609. The reversal of 16211137516 is 61573111261.

16211137516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15235500 + ... + 15236563.

Almost surely, 2^16211137516 is an apocalyptic number.

It is an amenable number.

16211137516 is an abundant number, since it is smaller than the sum of its proper divisors (17917574164).

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

16211137516 is a wasteful number, since it uses less digits than its factorization.

16211137516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30472093 (or 30472091 counting only the distinct ones).

The product of its digits is 7560, while the sum is 34.

Adding to 16211137516 its reverse (61573111261), we get a palindrome (77784248777).

The spelling of 16211137516 in words is "sixteen billion, two hundred eleven million, one hundred thirty-seven thousand, five hundred sixteen".