66316272548140 has 96 divisors (see below), whose sum is σ = 141872589573120. Its totient is φ = 26031271392000.

The previous prime is 66316272548063. The next prime is 66316272548143. The reversal of 66316272548140 is 4184527261366.

It is not an unprimeable number, because it can be changed into a prime (66316272548143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2376828190 + ... + 2376856090.

It is an arithmetic number, because the mean of its divisors is an integer number (1477839474720).

Almost surely, 2^{66316272548140} is an apocalyptic number.

It is an amenable number.

66316272548140 is an abundant number, since it is smaller than the sum of its proper divisors (75556317024980).

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

66316272548140 is a wasteful number, since it uses less digits than its factorization.

66316272548140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31423 (or 31421 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 66316272548140 in words is "sixty-six trillion, three hundred sixteen billion, two hundred seventy-two million, five hundred forty-eight thousand, one hundred forty".