612066385 has 16 divisors (see below), whose sum is σ = 888782976. Its totient is φ = 395013888.

The previous prime is 612066359. The next prime is 612066397. The reversal of 612066385 is 583660216.

It is a cyclic number.

It is not a de Polignac number, because 612066385 - 2¹¹ = 612064337 is a prime.

It is a Duffinian number.

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, 513747 + ... + 514936.

It is an arithmetic number, because the mean of its divisors is an integer number (55548936).

Almost surely, 2^612066385 is an apocalyptic number.

It is an amenable number.

612066385 is a deficient number, since it is larger than the sum of its proper divisors (276716591).

612066385 is a wasteful number, since it uses less digits than its factorization.

612066385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028712.

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

The square root of 612066385 is about 24739.9754446119. The cubic root of 612066385 is about 849.0491720745.

The spelling of 612066385 in words is "six hundred twelve million, sixty-six thousand, three hundred eighty-five".