146666959599 has 4 divisors (see below), whose sum is σ = 195555946136. Its totient is φ = 97777973064.

The previous prime is 146666959573. The next prime is 146666959669. The reversal of 146666959599 is 995959666641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 995959666641 = 3 ⋅331986555547.

It is not a de Polignac number, because 146666959599 - 2²⁰ = 146665911023 is a prime.

It is a super-2 number, since 2×146666959599² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146666959599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146666919599) 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, 24444493264 + ... + 24444493269.

It is an arithmetic number, because the mean of its divisors is an integer number (48888986534).

Almost surely, 2^146666959599 is an apocalyptic number.

146666959599 is a deficient number, since it is larger than the sum of its proper divisors (48888986537).

146666959599 is an equidigital number, since it uses as much as digits as its factorization.

146666959599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48888986536.

The product of its digits is 850305600, while the sum is 75.

The spelling of 146666959599 in words is "one hundred forty-six billion, six hundred sixty-six million, nine hundred fifty-nine thousand, five hundred ninety-nine".