423216603601 has 9 divisors (see below), whose sum is σ = 465196364059. Its totient is φ = 384735861400.

The previous prime is 423216603529. The next prime is 423216603619. The reversal of 423216603601 is 106306612324.

The square root of 423216603601 is 650551.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 263424536001 + 159792067600 = 513249^2 + 399740^2 .

It is a de Polignac number, because none of the positive numbers 2^k-423216603601 is a prime.

It is a super-2 number, since 2×423216603601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423216606601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7126491 + ... + 7185631.

Almost surely, 2^423216603601 is an apocalyptic number.

423216603601 is the 650551-st square number.

423216603601 is the 325276-th centered octagonal number.

It is an amenable number.

423216603601 is a deficient number, since it is larger than the sum of its proper divisors (41979760458).

423216603601 is an frugal number, since it uses more digits than its factorization.

423216603601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118304 (or 59152 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 423216603601 in words is "four hundred twenty-three billion, two hundred sixteen million, six hundred three thousand, six hundred one".