423581617530665 has 16 divisors (see below), whose sum is σ = 554510566661760. Its totient is φ = 308057290485120.

The previous prime is 423581617530653. The next prime is 423581617530697. The reversal of 423581617530665 is 566035716185324.

It is not a de Polignac number, because 423581617530665 - 2²² = 423581613336361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423581617530598 and 423581617530607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17553845 + ... + 33989714.

It is an arithmetic number, because the mean of its divisors is an integer number (34656910416360).

Almost surely, 2^{423581617530665} is an apocalyptic number.

It is an amenable number.

423581617530665 is a deficient number, since it is larger than the sum of its proper divisors (130928949131095).

423581617530665 is a wasteful number, since it uses less digits than its factorization.

423581617530665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51692992.

The product of its (nonzero) digits is 108864000, while the sum is 62.

The spelling of 423581617530665 in words is "four hundred twenty-three trillion, five hundred eighty-one billion, six hundred seventeen million, five hundred thirty thousand, six hundred sixty-five".