506610161491 has 8 divisors (see below), whose sum is σ = 579027052800. Its totient is φ = 434204272968.

The previous prime is 506610161483. The next prime is 506610161507. The reversal of 506610161491 is 194161016605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 506610161491 - 2³ = 506610161483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506610165491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2651791 + ... + 2836408.

It is an arithmetic number, because the mean of its divisors is an integer number (72378381600).

Almost surely, 2^506610161491 is an apocalyptic number.

506610161491 is a deficient number, since it is larger than the sum of its proper divisors (72416891309).

506610161491 is a wasteful number, since it uses less digits than its factorization.

506610161491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501393.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 506610161491 in words is "five hundred six billion, six hundred ten million, one hundred sixty-one thousand, four hundred ninety-one".