1043666406164 has 24 divisors (see below), whose sum is σ = 1906502149440. Its totient is φ = 498967614464.

The previous prime is 1043666406143. The next prime is 1043666406191. The reversal of 1043666406164 is 4616046663401.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1752749 + ... + 2271444.

It is an arithmetic number, because the mean of its divisors is an integer number (79437589560).

Almost surely, 2^{1043666406164} is an apocalyptic number.

It is an amenable number.

1043666406164 is a deficient number, since it is larger than the sum of its proper divisors (862835743276).

1043666406164 is a wasteful number, since it uses less digits than its factorization.

1043666406164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027039 (or 4027037 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 47.

The spelling of 1043666406164 in words is "one trillion, forty-three billion, six hundred sixty-six million, four hundred six thousand, one hundred sixty-four".