66323004532642 has 48 divisors (see below), whose sum is σ = 121823104488120. Its totient is φ = 26868253547520.

The previous prime is 66323004532619. The next prime is 66323004532643. The reversal of 66323004532642 is 24623540032366.

It can be written as a sum of positive squares in 4 ways, for example, as 62095329843481 + 4227674689161 = 7880059^2 + 2056131^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66323004532592 and 66323004532601.

It is not an unprimeable number, because it can be changed into a prime (66323004532643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 363386223 + ... + 363568690.

Almost surely, 2^{66323004532642} is an apocalyptic number.

66323004532642 is a deficient number, since it is larger than the sum of its proper divisors (55500099955478).

66323004532642 is a wasteful number, since it uses less digits than its factorization.

66323004532642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726954979 (or 726954968 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 46.

The spelling of 66323004532642 in words is "sixty-six trillion, three hundred twenty-three billion, four million, five hundred thirty-two thousand, six hundred forty-two".