669872277177 has 16 divisors (see below), whose sum is σ = 897459404160. Its totient is φ = 444436745472.

The previous prime is 669872277119. The next prime is 669872277181. The reversal of 669872277177 is 771772278966.

It is not a de Polignac number, because 669872277177 - 2¹⁴ = 669872260793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (669872277077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360849 + ... + 1212417.

It is an arithmetic number, because the mean of its divisors is an integer number (56091212760).

Almost surely, 2^669872277177 is an apocalyptic number.

It is an amenable number.

669872277177 is a deficient number, since it is larger than the sum of its proper divisors (227587126983).

669872277177 is a wasteful number, since it uses less digits than its factorization.

669872277177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852832.

The product of its digits is 174254976, while the sum is 69.

The spelling of 669872277177 in words is "six hundred sixty-nine billion, eight hundred seventy-two million, two hundred seventy-seven thousand, one hundred seventy-seven".