145466050666 has 4 divisors (see below), whose sum is σ = 218199076002. Its totient is φ = 72733025332.

The previous prime is 145466050663. The next prime is 145466050669. The reversal of 145466050666 is 666050664541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 666050664541 = 929 ⋅716954429.

It is an interprime number because it is at equal distance from previous prime (145466050663) and next prime (145466050669).

It can be written as a sum of positive squares in only one way, i.e., 91973299441 + 53492751225 = 303271^2 + 231285^2 .

It is not an unprimeable number, because it can be changed into a prime (145466050661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36366512665 + ... + 36366512668.

Almost surely, 2^145466050666 is an apocalyptic number.

145466050666 is a deficient number, since it is larger than the sum of its proper divisors (72733025336).

145466050666 is an equidigital number, since it uses as much as digits as its factorization.

145466050666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72733025335.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 145466050666 in words is "one hundred forty-five billion, four hundred sixty-six million, fifty thousand, six hundred sixty-six".