66022064662451 has 2 divisors, whose sum is σ = 66022064662452. Its totient is φ = 66022064662450.

The previous prime is 66022064662441. The next prime is 66022064662553. The reversal of 66022064662451 is 15426646022066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66022064662451 - 2⁶ = 66022064662387 is a prime.

It is a super-2 number, since 2×66022064662451² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66022064662451.

It is not a weakly prime, because it can be changed into another prime (66022064662441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33011032331225 + 33011032331226.

It is an arithmetic number, because the mean of its divisors is an integer number (33011032331226).

Almost surely, 2^{66022064662451} is an apocalyptic number.

66022064662451 is a deficient number, since it is larger than the sum of its proper divisors (1).

66022064662451 is an equidigital number, since it uses as much as digits as its factorization.

66022064662451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 66022064662451 in words is "sixty-six trillion, twenty-two billion, sixty-four million, six hundred sixty-two thousand, four hundred fifty-one".