66200005722 has 32 divisors (see below), whose sum is σ = 137052622080. Its totient is φ = 21292201280.

The previous prime is 66200005699. The next prime is 66200005727. The reversal of 66200005722 is 22750000266.

It is a self number, because there is not a number n which added to its sum of digits gives 66200005722.

It is not an unprimeable number, because it can be changed into a prime (66200005727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155272 + ... + 395612.

It is an arithmetic number, because the mean of its divisors is an integer number (4282894440).

Almost surely, 2^66200005722 is an apocalyptic number.

66200005722 is an abundant number, since it is smaller than the sum of its proper divisors (70852616358).

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

66200005722 is a wasteful number, since it uses less digits than its factorization.

66200005722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241958.

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 66200005722 its reverse (22750000266), we get a palindrome (88950005988).

The spelling of 66200005722 in words is "sixty-six billion, two hundred million, five thousand, seven hundred twenty-two".