672355066 has 8 divisors (see below), whose sum is σ = 1067858100. Its totient is φ = 316402368.

The previous prime is 672355031. The next prime is 672355097. The reversal of 672355066 is 660553276.

It can be written as a sum of positive squares in 2 ways, for example, as 672313041 + 42025 = 25929^2 + 205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×672355066² = 904122669551728712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9887541 + ... + 9887608.

Almost surely, 2^672355066 is an apocalyptic number.

672355066 is a deficient number, since it is larger than the sum of its proper divisors (395503034).

672355066 is a wasteful number, since it uses less digits than its factorization.

672355066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19775168.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 672355066 is about 25929.8103733907. The cubic root of 672355066 is about 876.0580685081.

The spelling of 672355066 in words is "six hundred seventy-two million, three hundred fifty-five thousand, sixty-six".