100561056050 has 144 divisors (see below), whose sum is σ = 236400385032. Its totient is φ = 31543142400.

The previous prime is 100561056031. The next prime is 100561056091. The reversal of 100561056050 is 50650165001.

It can be written as a sum of positive squares in 12 ways, for example, as 7537886041 + 93023170009 = 86821^2 + 304997^2 .

It is a super-2 number, since 2×100561056050² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3585080 + ... + 3613020.

Almost surely, 2^100561056050 is an apocalyptic number.

100561056050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100561056050 is an abundant number, since it is smaller than the sum of its proper divisors (135839328982).

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

100561056050 is a wasteful number, since it uses less digits than its factorization.

100561056050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28093 (or 28081 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 100561056050 in words is "one hundred billion, five hundred sixty-one million, fifty-six thousand, fifty".