423665075337984 has 432 divisors, whose sum is σ = 1326243637555200. Its totient is φ = 134709135740928.

The previous prime is 423665075337953. The next prime is 423665075338069. The reversal of 423665075337984 is 489733570566324.

423665075337984 is a `hidden beast` number, since 4 + 2 + 3 + 6 + 6 + 5 + 0 + 7 + 533 + 7 + 9 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×423665075337984² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148319937 + ... + 151149375.

Almost surely, 2^{423665075337984} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423665075337984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663121818777600).

423665075337984 is an abundant number, since it is smaller than the sum of its proper divisors (902578562217216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423665075337984 is an equidigital number, since it uses as much as digits as its factorization.

423665075337984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829582 (or 2829556 counting only the distinct ones).

The product of its (nonzero) digits is 2743372800, while the sum is 72.

The spelling of 423665075337984 in words is "four hundred twenty-three trillion, six hundred sixty-five billion, seventy-five million, three hundred thirty-seven thousand, nine hundred eighty-four".