66670407074000 has 80 divisors (see below), whose sum is σ = 161210823561216. Its totient is φ = 26667868496000.

The previous prime is 66670407073957. The next prime is 66670407074003. The reversal of 66670407074000 is 47070407666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66670407074003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322838777 + ... + 323045223.

Almost surely, 2^{66670407074000} is an apocalyptic number.

It is an amenable number.

66670407074000 is an abundant number, since it is smaller than the sum of its proper divisors (94540416487216).

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

66670407074000 is a wasteful number, since it uses less digits than its factorization.

66670407074000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367941 (or 367925 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 66670407074000 in words is "sixty-six trillion, six hundred seventy billion, four hundred seven million, seventy-four thousand".