16368531766 has 12 divisors (see below), whose sum is σ = 25024807332. Its totient is φ = 8029843016.

The previous prime is 16368531733. The next prime is 16368531769. The reversal of 16368531766 is 66713586361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16368531769) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1451176 + ... + 1462411.

It is an arithmetic number, because the mean of its divisors is an integer number (2085400611).

Almost surely, 2^16368531766 is an apocalyptic number.

16368531766 is a deficient number, since it is larger than the sum of its proper divisors (8656275566).

16368531766 is an equidigital number, since it uses as much as digits as its factorization.

16368531766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913695 (or 2913642 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 52.

The spelling of 16368531766 in words is "sixteen billion, three hundred sixty-eight million, five hundred thirty-one thousand, seven hundred sixty-six".