66766153014 has 160 divisors (see below), whose sum is σ = 174908802816. Its totient is φ = 18829039680.

The previous prime is 66766152989. The next prime is 66766153033. The reversal of 66766153014 is 41035166766.

It is a super-2 number, since 2×66766153014² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 1494469 + ... + 1538495.

Almost surely, 2^66766153014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66766153014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87454401408).

66766153014 is an abundant number, since it is smaller than the sum of its proper divisors (108142649802).

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

66766153014 is a wasteful number, since it uses less digits than its factorization.

66766153014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44112 (or 44103 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 66766153014 in words is "sixty-six billion, seven hundred sixty-six million, one hundred fifty-three thousand, fourteen".