100640043604 has 12 divisors (see below), whose sum is σ = 176517641664. Its totient is φ = 50206431704.

The previous prime is 100640043583. The next prime is 100640043607. The reversal of 100640043604 is 406340046001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100640043607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28395532 + ... + 28399075.

It is an arithmetic number, because the mean of its divisors is an integer number (14709803472).

Almost surely, 2^100640043604 is an apocalyptic number.

It is an amenable number.

100640043604 is a deficient number, since it is larger than the sum of its proper divisors (75877598060).

100640043604 is a wasteful number, since it uses less digits than its factorization.

100640043604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56795054 (or 56795052 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 100640043604 its reverse (406340046001), we get a palindrome (506980089605).

The spelling of 100640043604 in words is "one hundred billion, six hundred forty million, forty-three thousand, six hundred four".