66103914390 has 32 divisors (see below), whose sum is σ = 160657620480. Its totient is φ = 17404574304.

The previous prime is 66103914389. The next prime is 66103914403. The reversal of 66103914390 is 9341930166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13943604 + ... + 13948343.

It is an arithmetic number, because the mean of its divisors is an integer number (5020550640).

Almost surely, 2^66103914390 is an apocalyptic number.

66103914390 is an abundant number, since it is smaller than the sum of its proper divisors (94553706090).

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

66103914390 is a wasteful number, since it uses less digits than its factorization.

66103914390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27892036.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 66103914390 in words is "sixty-six billion, one hundred three million, nine hundred fourteen thousand, three hundred ninety".