100561045476 has 48 divisors (see below), whose sum is σ = 247039349760. Its totient is φ = 31750037280.

The previous prime is 100561045451. The next prime is 100561045477. The reversal of 100561045476 is 674540165001.

It is a super-2 number, since 2×100561045476² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100561045477) 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, 1235305 + ... + 1314191.

It is an arithmetic number, because the mean of its divisors is an integer number (5146653120).

Almost surely, 2^100561045476 is an apocalyptic number.

It is an amenable number.

100561045476 is an abundant number, since it is smaller than the sum of its proper divisors (146478304284).

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

100561045476 is a wasteful number, since it uses less digits than its factorization.

100561045476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84504 (or 84502 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 100561045476 in words is "one hundred billion, five hundred sixty-one million, forty-five thousand, four hundred seventy-six".