66707117202 has 128 divisors (see below), whose sum is σ = 151887052800. Its totient is φ = 19356321600.

The previous prime is 66707117123. The next prime is 66707117237. The reversal of 66707117202 is 20271170766.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30612549 + ... + 30614727.

It is an arithmetic number, because the mean of its divisors is an integer number (1186617600).

Almost surely, 2^66707117202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66707117202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75943526400).

66707117202 is an abundant number, since it is smaller than the sum of its proper divisors (85179935598).

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

66707117202 is a wasteful number, since it uses less digits than its factorization.

66707117202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452.

The product of its (nonzero) digits is 49392, while the sum is 39.

Adding to 66707117202 its reverse (20271170766), we get a palindrome (86978287968).

The spelling of 66707117202 in words is "sixty-six billion, seven hundred seven million, one hundred seventeen thousand, two hundred two".