66163407132 has 12 divisors (see below), whose sum is σ = 154381283336. Its totient is φ = 22054469040.

The previous prime is 66163407103. The next prime is 66163407137. The reversal of 66163407132 is 23170436166.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66163407137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2756808619 + ... + 2756808642.

Almost surely, 2^66163407132 is an apocalyptic number.

It is an amenable number.

66163407132 is an abundant number, since it is smaller than the sum of its proper divisors (88217876204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66163407132 is a wasteful number, since it uses less digits than its factorization.

66163407132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513617268 (or 5513617266 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 66163407132 in words is "sixty-six billion, one hundred sixty-three million, four hundred seven thousand, one hundred thirty-two".