143666616610465 has 48 divisors (see below), whose sum is σ = 195958494950400. Its totient is φ = 100502790401664.

The previous prime is 143666616610343. The next prime is 143666616610507. The reversal of 143666616610465 is 564016616666341.

143666616610465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143666616610465 - 2⁷ = 143666616610337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 439077796 + ... + 439404874.

It is an arithmetic number, because the mean of its divisors is an integer number (4082468644800).

Almost surely, 2^{143666616610465} is an apocalyptic number.

It is an amenable number.

143666616610465 is a deficient number, since it is larger than the sum of its proper divisors (52291878339935).

143666616610465 is a wasteful number, since it uses less digits than its factorization.

143666616610465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345854 (or 345835 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 61.

The spelling of 143666616610465 in words is "one hundred forty-three trillion, six hundred sixty-six billion, six hundred sixteen million, six hundred ten thousand, four hundred sixty-five".