606746642121 has 6 divisors (see below), whose sum is σ = 876411816410. Its totient is φ = 404497761408.

The previous prime is 606746642113. The next prime is 606746642141. The reversal of 606746642121 is 121246647606.

606746642121 is a `hidden beast` number, since 6 + 0 + 67 + 466 + 4 + 2 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 591036526521 + 15710115600 = 768789^2 + 125340^2 .

It is not a de Polignac number, because 606746642121 - 2³ = 606746642113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606746642141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33708146776 + ... + 33708146793.

Almost surely, 2^606746642121 is an apocalyptic number.

It is an amenable number.

606746642121 is a deficient number, since it is larger than the sum of its proper divisors (269665174289).

606746642121 is a wasteful number, since it uses less digits than its factorization.

606746642121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67416293575 (or 67416293572 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 606746642121 in words is "six hundred six billion, seven hundred forty-six million, six hundred forty-two thousand, one hundred twenty-one".