66436053083080 has 32 divisors (see below), whose sum is σ = 149481367947000. Its totient is φ = 26574377053696.

The previous prime is 66436053083077. The next prime is 66436053083117. The reversal of 66436053083080 is 8038035063466.

It can be written as a sum of positive squares in 4 ways, for example, as 66278518710244 + 157534372836 = 8141162^2 + 396906^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34480074 + ... + 36355846.

Almost surely, 2^{66436053083080} is an apocalyptic number.

It is an amenable number.

66436053083080 is an abundant number, since it is smaller than the sum of its proper divisors (83045314863920).

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

66436053083080 is a wasteful number, since it uses less digits than its factorization.

66436053083080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761233 (or 2761229 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 52.

The spelling of 66436053083080 in words is "sixty-six trillion, four hundred thirty-six billion, fifty-three million, eighty-three thousand, eighty".