66372230100 has 144 divisors (see below), whose sum is σ = 212622391296. Its totient is φ = 15850032000.

The previous prime is 66372230047. The next prime is 66372230131. The reversal of 66372230100 is 103227366.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71005 + ... + 371195.

It is an arithmetic number, because the mean of its divisors is an integer number (1476544384).

Almost surely, 2^66372230100 is an apocalyptic number.

66372230100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66372230100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106311195648).

66372230100 is an abundant number, since it is smaller than the sum of its proper divisors (146250161196).

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

66372230100 is a wasteful number, since it uses less digits than its factorization.

66372230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300286 (or 300279 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

Adding to 66372230100 its reverse (103227366), we get a palindrome (66475457466).

The spelling of 66372230100 in words is "sixty-six billion, three hundred seventy-two million, two hundred thirty thousand, one hundred".