66500511151000 has 32 divisors (see below), whose sum is σ = 155611196095680. Its totient is φ = 26600204460000.

The previous prime is 66500511150989. The next prime is 66500511151001. The reversal of 66500511151000 is 15111500566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66500511151001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33250254576 + ... + 33250256575.

It is an arithmetic number, because the mean of its divisors is an integer number (4862849877990).

Almost surely, 2^{66500511151000} is an apocalyptic number.

It is an amenable number.

66500511151000 is an abundant number, since it is smaller than the sum of its proper divisors (89110684944680).

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

66500511151000 is a wasteful number, since it uses less digits than its factorization.

66500511151000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66500511172 (or 66500511158 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 31.

Adding to 66500511151000 its reverse (15111500566), we get a palindrome (66515622651566).

The spelling of 66500511151000 in words is "sixty-six trillion, five hundred billion, five hundred eleven million, one hundred fifty-one thousand".