66616300101 has 16 divisors (see below), whose sum is σ = 95710636224. Its totient is φ = 40970448384.

The previous prime is 66616300081. The next prime is 66616300109. The reversal of 66616300101 is 10100361666.

It is not a de Polignac number, because 66616300101 - 2¹¹ = 66616298053 is a prime.

It is a super-2 number, since 2×66616300101² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66616300109) 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, 437091 + ... + 569456.

It is an arithmetic number, because the mean of its divisors is an integer number (5981914764).

Almost surely, 2^66616300101 is an apocalyptic number.

It is an amenable number.

66616300101 is a deficient number, since it is larger than the sum of its proper divisors (29094336123).

66616300101 is a wasteful number, since it uses less digits than its factorization.

66616300101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008260.

The product of its (nonzero) digits is 3888, while the sum is 30.

Adding to 66616300101 its reverse (10100361666), we get a palindrome (76716661767).

The spelling of 66616300101 in words is "sixty-six billion, six hundred sixteen million, three hundred thousand, one hundred one".