66716462263 has 8 divisors (see below), whose sum is σ = 72792089856. Its totient is φ = 60642583800.

The previous prime is 66716462257. The next prime is 66716462287. The reversal of 66716462263 is 36226461766.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66716462263 - 2⁹ = 66716461751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66716462203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356881 + ... + 510682.

It is an arithmetic number, because the mean of its divisors is an integer number (9099011232).

Almost surely, 2^66716462263 is an apocalyptic number.

66716462263 is a deficient number, since it is larger than the sum of its proper divisors (6075627593).

66716462263 is a wasteful number, since it uses less digits than its factorization.

66716462263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874565.

The product of its digits is 2612736, while the sum is 49.

The spelling of 66716462263 in words is "sixty-six billion, seven hundred sixteen million, four hundred sixty-two thousand, two hundred sixty-three".