66022757721129 has 64 divisors (see below), whose sum is σ = 96612826464000. Its totient is φ = 39773143833600.

The previous prime is 66022757721113. The next prime is 66022757721139. The reversal of 66022757721129 is 92112775722066.

It is not a de Polignac number, because 66022757721129 - 2⁴ = 66022757721113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66022757721139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5888049127 + ... + 5888060339.

It is an arithmetic number, because the mean of its divisors is an integer number (1509575413500).

Almost surely, 2^{66022757721129} is an apocalyptic number.

It is an amenable number.

66022757721129 is a deficient number, since it is larger than the sum of its proper divisors (30590068742871).

66022757721129 is a wasteful number, since it uses less digits than its factorization.

66022757721129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13146.

The product of its (nonzero) digits is 8890560, while the sum is 57.

The spelling of 66022757721129 in words is "sixty-six trillion, twenty-two billion, seven hundred fifty-seven million, seven hundred twenty-one thousand, one hundred twenty-nine".