172612066 has 32 divisors (see below), whose sum is σ = 289731456. Its totient is φ = 77101200.

The previous prime is 172612057. The next prime is 172612087. The reversal of 172612066 is 660216271.

It is a happy number.

172612066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161851 + ... + 162913.

It is an arithmetic number, because the mean of its divisors is an integer number (9054108).

Almost surely, 2^172612066 is an apocalyptic number.

172612066 is a deficient number, since it is larger than the sum of its proper divisors (117119390).

172612066 is a wasteful number, since it uses less digits than its factorization.

172612066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 172612066 is about 13138.1911235908. The cubic root of 172612066 is about 556.7886626299.

The spelling of 172612066 in words is "one hundred seventy-two million, six hundred twelve thousand, sixty-six".