132351666225665 has 4 divisors (see below), whose sum is σ = 158821999470804. Its totient is φ = 105881332980528.

The previous prime is 132351666225641. The next prime is 132351666225683. The reversal of 132351666225665 is 566522666153231.

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 102310129833409 + 30041536392256 = 10114847^2 + 5481016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132351666225665 is a prime.

It is a Duffinian number.

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, 13235166622562 + ... + 13235166622571.

It is an arithmetic number, because the mean of its divisors is an integer number (39705499867701).

Almost surely, 2^{132351666225665} is an apocalyptic number.

It is an amenable number.

132351666225665 is a deficient number, since it is larger than the sum of its proper divisors (26470333245139).

132351666225665 is an equidigital number, since it uses as much as digits as its factorization.

132351666225665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26470333245138.

The product of its digits is 69984000, while the sum is 59.

The spelling of 132351666225665 in words is "one hundred thirty-two trillion, three hundred fifty-one billion, six hundred sixty-six million, two hundred twenty-five thousand, six hundred sixty-five".