66226611525360 has 320 divisors, whose sum is σ = 242638840120320. Its totient is φ = 14731197603840.

The previous prime is 66226611525343. The next prime is 66226611525367. The reversal of 66226611525360 is 6352511662266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66226611525367) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46045 + ... + 11508924.

It is an arithmetic number, because the mean of its divisors is an integer number (758246375376).

Almost surely, 2^{66226611525360} is an apocalyptic number.

66226611525360 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 66226611525360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121319420060160).

66226611525360 is an abundant number, since it is smaller than the sum of its proper divisors (176412228594960).

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

66226611525360 is a wasteful number, since it uses less digits than its factorization.

66226611525360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11555176 (or 11555170 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 66226611525360 in words is "sixty-six trillion, two hundred twenty-six billion, six hundred eleven million, five hundred twenty-five thousand, three hundred sixty".