66741567203 has 4 divisors (see below), whose sum is σ = 66757877568. Its totient is φ = 66725256840.

The previous prime is 66741567127. The next prime is 66741567241. The reversal of 66741567203 is 30276514766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66741567203 - 2¹² = 66741563107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66741567283) 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, 8149043 + ... + 8157228.

It is an arithmetic number, because the mean of its divisors is an integer number (16689469392).

Almost surely, 2^66741567203 is an apocalyptic number.

66741567203 is a deficient number, since it is larger than the sum of its proper divisors (16310365).

66741567203 is a wasteful number, since it uses less digits than its factorization.

66741567203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16310364.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 66741567203 in words is "sixty-six billion, seven hundred forty-one million, five hundred sixty-seven thousand, two hundred three".