146791370665 has 4 divisors (see below), whose sum is σ = 176149644804. Its totient is φ = 117433096528.

The previous prime is 146791370657. The next prime is 146791370711. The reversal of 146791370665 is 566073197641.

146791370665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566073197641 = 7 ⋅80867599663.

It can be written as a sum of positive squares in 2 ways, for example, as 101137356441 + 45654014224 = 318021^2 + 213668^2 .

It is a cyclic number.

It is not a de Polignac number, because 146791370665 - 2³ = 146791370657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14679137062 + ... + 14679137071.

It is an arithmetic number, because the mean of its divisors is an integer number (44037411201).

Almost surely, 2^146791370665 is an apocalyptic number.

It is an amenable number.

146791370665 is a deficient number, since it is larger than the sum of its proper divisors (29358274139).

146791370665 is an equidigital number, since it uses as much as digits as its factorization.

146791370665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29358274138.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 146791370665 in words is "one hundred forty-six billion, seven hundred ninety-one million, three hundred seventy thousand, six hundred sixty-five".