66316453431 has 8 divisors (see below), whose sum is σ = 88880083440. Its totient is φ = 43981896192.

The previous prime is 66316453421. The next prime is 66316453451. The reversal of 66316453431 is 13435461366.

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

It is not a de Polignac number, because 66316453431 - 2¹⁹ = 66315929143 is a prime.

It is a super-2 number, since 2×66316453431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66316453421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57267516 + ... + 57268673.

It is an arithmetic number, because the mean of its divisors is an integer number (11110010430).

Almost surely, 2^66316453431 is an apocalyptic number.

66316453431 is a deficient number, since it is larger than the sum of its proper divisors (22563630009).

66316453431 is a wasteful number, since it uses less digits than its factorization.

66316453431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114536385.

The product of its digits is 466560, while the sum is 42.

The spelling of 66316453431 in words is "sixty-six billion, three hundred sixteen million, four hundred fifty-three thousand, four hundred thirty-one".