166714606249 has 9 divisors (see below), whose sum is σ = 167539761783. Its totient is φ = 165893500872.

The previous prime is 166714606237. The next prime is 166714606291. The reversal of 166714606249 is 942606417661.

The square root of 166714606249 is 408307.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 155269885849 + 11444720400 = 394043^2 + 106980^2 .

It is not a de Polignac number, because 166714606249 - 2²¹ = 166712509097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166714606196 and 166714606205.

It is not an unprimeable number, because it can be changed into a prime (166714606649) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 93501412 + ... + 93503194.

It is an arithmetic number, because the mean of its divisors is an integer number (18615529087).

Almost surely, 2^166714606249 is an apocalyptic number.

166714606249 is the 408307-th square number.

166714606249 is the 204154-th centered octagonal number.

It is an amenable number.

166714606249 is a deficient number, since it is larger than the sum of its proper divisors (825155534).

166714606249 is an frugal number, since it uses more digits than its factorization.

166714606249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 166714606249 in words is "one hundred sixty-six billion, seven hundred fourteen million, six hundred six thousand, two hundred forty-nine".