657547610461 has 40 divisors (see below), whose sum is σ = 778718513664. Its totient is φ = 555112736640.

The previous prime is 657547610453. The next prime is 657547610491. The reversal of 657547610461 is 164016745756.

It is not a de Polignac number, because 657547610461 - 2³ = 657547610453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 657547610399 and 657547610408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657547610431) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 67153476 + ... + 67163266.

Almost surely, 2^657547610461 is an apocalyptic number.

It is an amenable number.

657547610461 is a deficient number, since it is larger than the sum of its proper divisors (121170903203).

657547610461 is an frugal number, since it uses more digits than its factorization.

657547610461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10239 (or 10218 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 657547610461 in words is "six hundred fifty-seven billion, five hundred forty-seven million, six hundred ten thousand, four hundred sixty-one".