66156104748480 has 896 divisors, whose sum is σ = 241830838379520. Its totient is φ = 15215937454080.

The previous prime is 66156104748467. The next prime is 66156104748509. The reversal of 66156104748480 is 8484740165166.

66156104748480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1984805415 + ... + 1984838745.

Almost surely, 2^{66156104748480} is an apocalyptic number.

66156104748480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66156104748480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120915419189760).

66156104748480 is an abundant number, since it is smaller than the sum of its proper divisors (175674733631040).

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

66156104748480 is a wasteful number, since it uses less digits than its factorization.

66156104748480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33597 (or 33587 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 66156104748480 in words is "sixty-six trillion, one hundred fifty-six billion, one hundred four million, seven hundred forty-eight thousand, four hundred eighty".