144543561466 has 4 divisors (see below), whose sum is σ = 216815342202. Its totient is φ = 72271780732.

The previous prime is 144543561427. The next prime is 144543561493. The reversal of 144543561466 is 664165345441.

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

It can be written as a sum of positive squares in only one way, i.e., 85836694441 + 58706867025 = 292979^2 + 242295^2 .

It is a super-2 number, since 2×144543561466² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36135890365 + ... + 36135890368.

Almost surely, 2^144543561466 is an apocalyptic number.

144543561466 is a deficient number, since it is larger than the sum of its proper divisors (72271780736).

144543561466 is an equidigital number, since it uses as much as digits as its factorization.

144543561466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72271780735.

The product of its digits is 4147200, while the sum is 49.

The spelling of 144543561466 in words is "one hundred forty-four billion, five hundred forty-three million, five hundred sixty-one thousand, four hundred sixty-six".