166936747 has 2 divisors, whose sum is σ = 166936748. Its totient is φ = 166936746.

The previous prime is 166936741. The next prime is 166936771. The reversal of 166936747 is 747639661.

It is a happy number.

166936747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166936747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166936747.

It is not a weakly prime, because it can be changed into another prime (166936741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83468373 + 83468374.

It is an arithmetic number, because the mean of its divisors is an integer number (83468374).

Almost surely, 2^166936747 is an apocalyptic number.

166936747 is a deficient number, since it is larger than the sum of its proper divisors (1).

166936747 is an equidigital number, since it uses as much as digits as its factorization.

166936747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 166936747 is about 12920.4004194916. The cubic root of 166936747 is about 550.6183095950.

It can be divided in two parts, 1669 and 36747, that added together give a 4-th power (38416 = 14⁴).

The spelling of 166936747 in words is "one hundred sixty-six million, nine hundred thirty-six thousand, seven hundred forty-seven".