16261587706 has 32 divisors (see below), whose sum is σ = 30187317888. Its totient is φ = 6397600320.

The previous prime is 16261587701. The next prime is 16261587721. The reversal of 16261587706 is 60778516261.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16261587706.

It is not an unprimeable number, because it can be changed into a prime (16261587701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213880 + ... + 279763.

It is an arithmetic number, because the mean of its divisors is an integer number (943353684).

Almost surely, 2^16261587706 is an apocalyptic number.

16261587706 is a deficient number, since it is larger than the sum of its proper divisors (13925730182).

16261587706 is a wasteful number, since it uses less digits than its factorization.

16261587706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493846.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 16261587706 in words is "sixteen billion, two hundred sixty-one million, five hundred eighty-seven thousand, seven hundred six".