612538066 has 32 divisors (see below), whose sum is σ = 1073761920. Its totient is φ = 256628736.

The previous prime is 612538063. The next prime is 612538079. The reversal of 612538066 is 660835216.

It is not an unprimeable number, because it can be changed into a prime (612538061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226450 + ... + 229138.

It is an arithmetic number, because the mean of its divisors is an integer number (33555060).

Almost surely, 2^612538066 is an apocalyptic number.

612538066 is a deficient number, since it is larger than the sum of its proper divisors (461223854).

612538066 is a wasteful number, since it uses less digits than its factorization.

612538066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 612538066 is about 24749.5063789159. The cubic root of 612538066 is about 849.2672189735.

The spelling of 612538066 in words is "six hundred twelve million, five hundred thirty-eight thousand, sixty-six".