1372173066 has 24 divisors (see below), whose sum is σ = 3243318624. Its totient is φ = 415809960.

The previous prime is 1372173017. The next prime is 1372173067. The reversal of 1372173066 is 6603712731.

1372173066 is a `hidden beast` number, since 137 + 217 + 306 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1372173066.

It is not an unprimeable number, because it can be changed into a prime (1372173067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3464886 + ... + 3465281.

It is an arithmetic number, because the mean of its divisors is an integer number (135138276).

Almost surely, 2^1372173066 is an apocalyptic number.

1372173066 is an abundant number, since it is smaller than the sum of its proper divisors (1871145558).

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

1372173066 is a wasteful number, since it uses less digits than its factorization.

1372173066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930186 (or 6930183 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1372173066 is about 37042.8544526471. The cubic root of 1372173066 is about 1111.2274563777.

Adding to 1372173066 its reverse (6603712731), we get a palindrome (7975885797).

The spelling of 1372173066 in words is "one billion, three hundred seventy-two million, one hundred seventy-three thousand, sixty-six".