100655561049 has 16 divisors (see below), whose sum is σ = 135838617600. Its totient is φ = 66288275856.

The previous prime is 100655561047. The next prime is 100655561059. The reversal of 100655561049 is 940165556001.

It is not a de Polignac number, because 100655561049 - 2¹ = 100655561047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100655561049.

It is not an unprimeable number, because it can be changed into a prime (100655561047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3591312 + ... + 3619230.

It is an arithmetic number, because the mean of its divisors is an integer number (8489913600).

Almost surely, 2^100655561049 is an apocalyptic number.

It is an amenable number.

100655561049 is a deficient number, since it is larger than the sum of its proper divisors (35183056551).

100655561049 is a wasteful number, since it uses less digits than its factorization.

100655561049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42484.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 100655561049 in words is "one hundred billion, six hundred fifty-five million, five hundred sixty-one thousand, forty-nine".