100340666556 has 24 divisors (see below), whose sum is σ = 252138085584. Its totient is φ = 30874051200.

The previous prime is 100340666551. The next prime is 100340666579. The reversal of 100340666556 is 655666043001.

It is a super-2 number, since 2×100340666556² (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 (100340666551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321604545 + ... + 321604856.

It is an arithmetic number, because the mean of its divisors is an integer number (10505753566).

Almost surely, 2^100340666556 is an apocalyptic number.

It is an amenable number.

100340666556 is an abundant number, since it is smaller than the sum of its proper divisors (151797419028).

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

100340666556 is a wasteful number, since it uses less digits than its factorization.

100340666556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643209421 (or 643209419 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 100340666556 in words is "one hundred billion, three hundred forty million, six hundred sixty-six thousand, five hundred fifty-six".