66203407100 has 36 divisors (see below), whose sum is σ = 143684814000. Its totient is φ = 26477045760.

The previous prime is 66203407091. The next prime is 66203407111. The reversal of 66203407100 is 170430266.

It is a super-2 number, since 2×66203407100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602201 + ... + 703599.

Almost surely, 2^66203407100 is an apocalyptic number.

It is an amenable number.

66203407100 is an abundant number, since it is smaller than the sum of its proper divisors (77481406900).

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

66203407100 is a wasteful number, since it uses less digits than its factorization.

66203407100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107942 (or 107935 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 66203407100 its reverse (170430266), we get a palindrome (66373837366).

The spelling of 66203407100 in words is "sixty-six billion, two hundred three million, four hundred seven thousand, one hundred".