100806665543664 has 40 divisors (see below), whose sum is σ = 260420741446272. Its totient is φ = 33601767380160.

The previous prime is 100806665543629. The next prime is 100806665543767. The reversal of 100806665543664 is 466345566608001.

It is a junction number, because it is equal to n+sod(n) for n = 100806665543598 and 100806665543607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10606764 + ... + 17723339.

Almost surely, 2^{100806665543664} is an apocalyptic number.

It is an amenable number.

100806665543664 is an abundant number, since it is smaller than the sum of its proper divisors (159614075902608).

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

100806665543664 is a wasteful number, since it uses less digits than its factorization.

100806665543664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28404245 (or 28404239 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 60.

The spelling of 100806665543664 in words is "one hundred trillion, eight hundred six billion, six hundred sixty-five million, five hundred forty-three thousand, six hundred sixty-four".