66136760000 has 140 divisors (see below), whose sum is σ = 168433808928. Its totient is φ = 25739136000.

The previous prime is 66136759979. The next prime is 66136760047. The reversal of 66136760000 is 6763166.

It is a happy number.

It is a super-3 number, since 3×66136760000³ (a number of 33 digits) contains 333 as substring.

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 19 ways as a sum of consecutive naturals, for example, 1457657 + ... + 1502343.

Almost surely, 2^66136760000 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 66136760000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84216904464).

66136760000 is an abundant number, since it is smaller than the sum of its proper divisors (102297048928).

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

66136760000 is an equidigital number, since it uses as much as digits as its factorization.

66136760000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44756 (or 44731 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 66136760000 in words is "sixty-six billion, one hundred thirty-six million, seven hundred sixty thousand".