612065601 has 24 divisors (see below), whose sum is σ = 1063574720. Its totient is φ = 331343136.

The previous prime is 612065591. The next prime is 612065609. The reversal of 612065601 is 106560216.

It is a happy number.

612065601 is a `hidden beast` number, since 6 + 1 + 2 + 0 + 656 + 0 + 1 = 666.

It is not a de Polignac number, because 612065601 - 2⁷ = 612065473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612065609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254470 + ... + 256863.

Almost surely, 2^612065601 is an apocalyptic number.

It is an amenable number.

612065601 is a deficient number, since it is larger than the sum of its proper divisors (451509119).

612065601 is a wasteful number, since it uses less digits than its factorization.

612065601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511365 (or 511362 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 612065601 is about 24739.9595998053. The cubic root of 612065601 is about 849.0488095568.

The spelling of 612065601 in words is "six hundred twelve million, sixty-five thousand, six hundred one".