660071247730 has 64 divisors (see below), whose sum is σ = 1203394008960. Its totient is φ = 260664316416.

The previous prime is 660071247713. The next prime is 660071247733. The reversal of 660071247730 is 37742170066.

It is a super-3 number, since 3×660071247730³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (660071247733) 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, 155564989 + ... + 155569231.

It is an arithmetic number, because the mean of its divisors is an integer number (18803031390).

Almost surely, 2^660071247730 is an apocalyptic number.

660071247730 is a deficient number, since it is larger than the sum of its proper divisors (543322761230).

660071247730 is a wasteful number, since it uses less digits than its factorization.

660071247730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035.

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 660071247730 in words is "six hundred sixty billion, seventy-one million, two hundred forty-seven thousand, seven hundred thirty".