431605657601 has 8 divisors (see below), whose sum is σ = 443550754944. Its totient is φ = 419675301360.

The previous prime is 431605657597. The next prime is 431605657603. The reversal of 431605657601 is 106756506134.

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 431605657601 - 2² = 431605657597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (431605657603) 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, 3625895 + ... + 3743036.

It is an arithmetic number, because the mean of its divisors is an integer number (55443844368).

Almost surely, 2^431605657601 is an apocalyptic number.

It is an amenable number.

431605657601 is a deficient number, since it is larger than the sum of its proper divisors (11945097343).

431605657601 is a wasteful number, since it uses less digits than its factorization.

431605657601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7370551.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 431605657601 in words is "four hundred thirty-one billion, six hundred five million, six hundred fifty-seven thousand, six hundred one".