166586900747 has 12 divisors (see below), whose sum is σ = 169543805904. Its totient is φ = 163678777920.

The previous prime is 166586900743. The next prime is 166586900789. The reversal of 166586900747 is 747009685661.

It is not a de Polignac number, because 166586900747 - 2² = 166586900743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166586900743) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1342097 + ... + 1460957.

It is an arithmetic number, because the mean of its divisors is an integer number (14128650492).

Almost surely, 2^166586900747 is an apocalyptic number.

166586900747 is a deficient number, since it is larger than the sum of its proper divisors (2956905157).

166586900747 is an equidigital number, since it uses as much as digits as its factorization.

166586900747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119270 (or 119197 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 166586900747 in words is "one hundred sixty-six billion, five hundred eighty-six million, nine hundred thousand, seven hundred forty-seven".