66235155100 has 18 divisors (see below), whose sum is σ = 143730286784. Its totient is φ = 26494062000.

The previous prime is 66235155097. The next prime is 66235155109. The reversal of 66235155100 is 155153266.

It is a super-2 number, since 2×66235155100² (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 (66235155109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331175676 + ... + 331175875.

Almost surely, 2^66235155100 is an apocalyptic number.

It is an amenable number.

66235155100 is an abundant number, since it is smaller than the sum of its proper divisors (77495131684).

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

66235155100 is a wasteful number, since it uses less digits than its factorization.

66235155100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662351565 (or 662351558 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 66235155100 in words is "sixty-six billion, two hundred thirty-five million, one hundred fifty-five thousand, one hundred".