66234126785469 has 8 divisors (see below), whose sum is σ = 88321909038240. Its totient is φ = 44151214528176.

The previous prime is 66234126785447. The next prime is 66234126785587. The reversal of 66234126785469 is 96458762143266.

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

It is not a de Polignac number, because 66234126785469 - 2³³ = 66225536850877 is a prime.

It is a super-2 number, since 2×66234126785469² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66234126786469) 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, 1217467134 + ... + 1217521535.

It is an arithmetic number, because the mean of its divisors is an integer number (11040238629780).

Almost surely, 2^{66234126785469} is an apocalyptic number.

It is an amenable number.

66234126785469 is a deficient number, since it is larger than the sum of its proper divisors (22087782252771).

66234126785469 is a wasteful number, since it uses less digits than its factorization.

66234126785469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434997739.

The product of its digits is 627056640, while the sum is 69.

The spelling of 66234126785469 in words is "sixty-six trillion, two hundred thirty-four billion, one hundred twenty-six million, seven hundred eighty-five thousand, four hundred sixty-nine".