66541415000 has 80 divisors (see below), whose sum is σ = 162685361520. Its totient is φ = 25459280000.

The previous prime is 66541414939. The next prime is 66541415027. The reversal of 66541415000 is 51414566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 174311 + ... + 404310.

It is an arithmetic number, because the mean of its divisors is an integer number (2033567019).

Almost surely, 2^66541415000 is an apocalyptic number.

It is an amenable number.

66541415000 is an abundant number, since it is smaller than the sum of its proper divisors (96143946520).

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

66541415000 is a wasteful number, since it uses less digits than its factorization.

66541415000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578670 (or 578651 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 66541415000 its reverse (51414566), we get a palindrome (66592829566).

The spelling of 66541415000 in words is "sixty-six billion, five hundred forty-one million, four hundred fifteen thousand".