66532346144 has 48 divisors (see below), whose sum is σ = 143534280960. Its totient is φ = 30106325760.

The previous prime is 66532346093. The next prime is 66532346161. The reversal of 66532346144 is 44164323566.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 66532346095 and 66532346104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345299 + ... + 502290.

It is an arithmetic number, because the mean of its divisors is an integer number (2990297520).

Almost surely, 2^66532346144 is an apocalyptic number.

It is an amenable number.

66532346144 is an abundant number, since it is smaller than the sum of its proper divisors (77001934816).

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

66532346144 is a wasteful number, since it uses less digits than its factorization.

66532346144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847833 (or 847825 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 44.

The spelling of 66532346144 in words is "sixty-six billion, five hundred thirty-two million, three hundred forty-six thousand, one hundred forty-four".