669272112 has 160 divisors (see below), whose sum is σ = 2054035200. Its totient is φ = 208023552.

The previous prime is 669272089. The next prime is 669272119. The reversal of 669272112 is 211272966.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (669272119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549328 + ... + 550544.

It is an arithmetic number, because the mean of its divisors is an integer number (12837720).

Almost surely, 2^669272112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669272112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027017600).

669272112 is an abundant number, since it is smaller than the sum of its proper divisors (1384763088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669272112 is a wasteful number, since it uses less digits than its factorization.

669272112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1308 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 669272112 is about 25870.2940068334. The cubic root of 669272112 is about 874.7170184779.

The spelling of 669272112 in words is "six hundred sixty-nine million, two hundred seventy-two thousand, one hundred twelve".