606551643 has 12 divisors (see below), whose sum is σ = 885975480. Its totient is φ = 399823776.

The previous prime is 606551623. The next prime is 606551689. The reversal of 606551643 is 346155606.

606551643 is a `hidden beast` number, since 6 + 0 + 6 + 5 + 5 + 1 + 643 = 666.

It is not a de Polignac number, because 606551643 - 2¹⁷ = 606420571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 606551598 and 606551607.

It is not an unprimeable number, because it can be changed into a prime (606551623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377821 + ... + 379422.

It is an arithmetic number, because the mean of its divisors is an integer number (73831290).

Almost surely, 2^606551643 is an apocalyptic number.

606551643 is a deficient number, since it is larger than the sum of its proper divisors (279423837).

606551643 is a wasteful number, since it uses less digits than its factorization.

606551643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757338 (or 757335 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 606551643 is about 24628.2691840089. The cubic root of 606551643 is about 846.4914862902.

The spelling of 606551643 in words is "six hundred six million, five hundred fifty-one thousand, six hundred forty-three".