100666600051655 has 16 divisors (see below), whose sum is σ = 135343399384224. Its totient is φ = 71233368094080.

The previous prime is 100666600051559. The next prime is 100666600051673. The reversal of 100666600051655 is 556150006666001.

It is not a de Polignac number, because 100666600051655 - 2⁸ = 100666600051399 is a prime.

It is a super-3 number, since 3×100666600051655³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24733806332 + ... + 24733810401.

It is an arithmetic number, because the mean of its divisors is an integer number (8458962461514).

Almost surely, 2^{100666600051655} is an apocalyptic number.

100666600051655 is a deficient number, since it is larger than the sum of its proper divisors (34676799332569).

100666600051655 is a wasteful number, since it uses less digits than its factorization.

100666600051655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49467616786.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 100666600051655 in words is "one hundred trillion, six hundred sixty-six billion, six hundred million, fifty-one thousand, six hundred fifty-five".