100406106556 has 48 divisors (see below), whose sum is σ = 211939436800. Its totient is φ = 40658744448.

The previous prime is 100406106551. The next prime is 100406106611. The reversal of 100406106556 is 655601604001.

It is a happy number.

It is a super-2 number, since 2×100406106556² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100406106551) 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, 47361 + ... + 450616.

Almost surely, 2^100406106556 is an apocalyptic number.

It is an amenable number.

100406106556 is an abundant number, since it is smaller than the sum of its proper divisors (111533330244).

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

100406106556 is a wasteful number, since it uses less digits than its factorization.

100406106556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498386 (or 498384 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 100406106556 in words is "one hundred billion, four hundred six million, one hundred six thousand, five hundred fifty-six".