66362422537026 has 384 divisors, whose sum is σ = 189400805867520. Its totient is φ = 16290095846400.

The previous prime is 66362422537003. The next prime is 66362422537027. The reversal of 66362422537026 is 62073522426366.

66362422537026 is a `hidden beast` number, since 6 + 6 + 3 + 6 + 24 + 225 + 370 + 26 = 666.

It is a super-2 number, since 2×66362422537026² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66362422537027) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 922830760 + ... + 922902668.

It is an arithmetic number, because the mean of its divisors is an integer number (493231265280).

Almost surely, 2^{66362422537026} is an apocalyptic number.

66362422537026 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 66362422537026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94700402933760).

66362422537026 is an abundant number, since it is smaller than the sum of its proper divisors (123038383330494).

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

66362422537026 is a wasteful number, since it uses less digits than its factorization.

66362422537026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72470 (or 72467 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 54.

The spelling of 66362422537026 in words is "sixty-six trillion, three hundred sixty-two billion, four hundred twenty-two million, five hundred thirty-seven thousand, twenty-six".