66822654713420 has 12 divisors (see below), whose sum is σ = 140327574898224. Its totient is φ = 26729061885360.

The previous prime is 66822654713413. The next prime is 66822654713509. The reversal of 66822654713420 is 2431745622866.

It is a super-4 number, since 4×66822654713420⁴ (a number of 56 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670566367816 + ... + 1670566367855.

It is an arithmetic number, because the mean of its divisors is an integer number (11693964574852).

Almost surely, 2^{66822654713420} is an apocalyptic number.

It is an amenable number.

66822654713420 is an abundant number, since it is smaller than the sum of its proper divisors (73504920184804).

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

66822654713420 is a wasteful number, since it uses less digits than its factorization.

66822654713420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341132735680 (or 3341132735678 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 66822654713420 in words is "sixty-six trillion, eight hundred twenty-two billion, six hundred fifty-four million, seven hundred thirteen thousand, four hundred twenty".