146066126665 has 4 divisors (see below), whose sum is σ = 175279352004. Its totient is φ = 116852901328.

The previous prime is 146066126627. The next prime is 146066126669. The reversal of 146066126665 is 566621660641.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56379653136 + 89686473529 = 237444^2 + 299477^2 .

It is a cyclic number.

It is not a de Polignac number, because 146066126665 - 2⁹ = 146066126153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146066126669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14606612662 + ... + 14606612671.

It is an arithmetic number, because the mean of its divisors is an integer number (43819838001).

Almost surely, 2^146066126665 is an apocalyptic number.

It is an amenable number.

146066126665 is a deficient number, since it is larger than the sum of its proper divisors (29213225339).

146066126665 is an equidigital number, since it uses as much as digits as its factorization.

146066126665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29213225338.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 146066126665 in words is "one hundred forty-six billion, sixty-six million, one hundred twenty-six thousand, six hundred sixty-five".