66852178611960 has 512 divisors, whose sum is σ = 231842248704000. Its totient is φ = 15106122915840.

The previous prime is 66852178611949. The next prime is 66852178611973. The reversal of 66852178611960 is 6911687125866.

66852178611960 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66852178611891 and 66852178611900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22501573275 + ... + 22501576245.

It is an arithmetic number, because the mean of its divisors is an integer number (452816892000).

Almost surely, 2^{66852178611960} is an apocalyptic number.

66852178611960 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 66852178611960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115921124352000).

66852178611960 is an abundant number, since it is smaller than the sum of its proper divisors (164990070092040).

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

66852178611960 is a wasteful number, since it uses less digits than its factorization.

66852178611960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011 (or 4007 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 66852178611960 in words is "sixty-six trillion, eight hundred fifty-two billion, one hundred seventy-eight million, six hundred eleven thousand, nine hundred sixty".