66487129260 has 96 divisors (see below), whose sum is σ = 187128480000. Its totient is φ = 17638283520.

The previous prime is 66487129187. The next prime is 66487129277. The reversal of 66487129260 is 6292178466.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9906786 + ... + 9913494.

It is an arithmetic number, because the mean of its divisors is an integer number (1949255000).

Almost surely, 2^66487129260 is an apocalyptic number.

66487129260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66487129260 is an abundant number, since it is smaller than the sum of its proper divisors (120641350740).

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

66487129260 is a wasteful number, since it uses less digits than its factorization.

66487129260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7551 (or 7549 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 66487129260 in words is "sixty-six billion, four hundred eighty-seven million, one hundred twenty-nine thousand, two hundred sixty".