66375428014 has 64 divisors (see below), whose sum is σ = 122214458880. Its totient is φ = 26389693440.

The previous prime is 66375427991. The next prime is 66375428017. The reversal of 66375428014 is 41082457366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66375428017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7006509 + ... + 7015975.

It is an arithmetic number, because the mean of its divisors is an integer number (1909600920).

Almost surely, 2^66375428014 is an apocalyptic number.

66375428014 is a deficient number, since it is larger than the sum of its proper divisors (55839030866).

66375428014 is a wasteful number, since it uses less digits than its factorization.

66375428014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9913.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 66375428014 in words is "sixty-six billion, three hundred seventy-five million, four hundred twenty-eight thousand, fourteen".