66492684960 has 288 divisors, whose sum is σ = 228473421120. Its totient is φ = 16246923264.

The previous prime is 66492684949. The next prime is 66492684977. The reversal of 66492684960 is 6948629466.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 66492684894 and 66492684903.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11272732 + ... + 11278628.

It is an arithmetic number, because the mean of its divisors is an integer number (793310490).

Almost surely, 2^66492684960 is an apocalyptic number.

66492684960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66492684960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114236710560).

66492684960 is an abundant number, since it is smaller than the sum of its proper divisors (161980736160).

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

66492684960 is a wasteful number, since it uses less digits than its factorization.

66492684960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080 (or 6059 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 66492684960 in words is "sixty-six billion, four hundred ninety-two million, six hundred eighty-four thousand, nine hundred sixty".