66150706272 has 192 divisors, whose sum is σ = 219262546944. Its totient is φ = 17014947840.

The previous prime is 66150706267. The next prime is 66150706283. The reversal of 66150706272 is 27260705166.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 136872 + ... + 388632.

It is an arithmetic number, because the mean of its divisors is an integer number (1141992432).

Almost surely, 2^66150706272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66150706272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109631273472).

66150706272 is an abundant number, since it is smaller than the sum of its proper divisors (153111840672).

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

66150706272 is a wasteful number, since it uses less digits than its factorization.

66150706272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251821 (or 251813 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 66150706272 in words is "sixty-six billion, one hundred fifty million, seven hundred six thousand, two hundred seventy-two".