16662411544 has 8 divisors (see below), whose sum is σ = 31242021660. Its totient is φ = 8331205768.

The previous prime is 16662411529. The next prime is 16662411631. The reversal of 16662411544 is 44511426661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 16662411497 and 16662411506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1041400714 + ... + 1041400729.

Almost surely, 2^16662411544 is an apocalyptic number.

It is an amenable number.

16662411544 is a deficient number, since it is larger than the sum of its proper divisors (14579610116).

16662411544 is a wasteful number, since it uses less digits than its factorization.

16662411544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082801449 (or 2082801445 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The spelling of 16662411544 in words is "sixteen billion, six hundred sixty-two million, four hundred eleven thousand, five hundred forty-four".