166772379279 has 16 divisors (see below), whose sum is σ = 242691410304. Its totient is φ = 101026917600.

The previous prime is 166772379251. The next prime is 166772379283. The reversal of 166772379279 is 972973277661.

166772379279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166772379279 - 2¹⁵ = 166772346511 is a prime.

It is a super-3 number, since 3×166772379279³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166772379679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109569 + ... + 1250874.

It is an arithmetic number, because the mean of its divisors is an integer number (15168213144).

Almost surely, 2^166772379279 is an apocalyptic number.

166772379279 is a deficient number, since it is larger than the sum of its proper divisors (75919031025).

166772379279 is a wasteful number, since it uses less digits than its factorization.

166772379279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362598.

The product of its digits is 84015792, while the sum is 66.

The spelling of 166772379279 in words is "one hundred sixty-six billion, seven hundred seventy-two million, three hundred seventy-nine thousand, two hundred seventy-nine".