16206620634 has 96 divisors (see below), whose sum is σ = 36656755200. Its totient is φ = 5169225600.

The previous prime is 16206620609. The next prime is 16206620641. The reversal of 16206620634 is 43602660261.

16206620634 is a `hidden beast` number, since 1 + 6 + 20 + 6 + 620 + 6 + 3 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33007129 + ... + 33007619.

It is an arithmetic number, because the mean of its divisors is an integer number (381841200).

Almost surely, 2^16206620634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16206620634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18328377600).

16206620634 is an abundant number, since it is smaller than the sum of its proper divisors (20450134566).

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

16206620634 is a wasteful number, since it uses less digits than its factorization.

16206620634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 16206620634 in words is "sixteen billion, two hundred six million, six hundred twenty thousand, six hundred thirty-four".