100061520543 has 12 divisors (see below), whose sum is σ = 144849578848. Its totient is φ = 66561708960.

The previous prime is 100061520541. The next prime is 100061520551. The reversal of 100061520543 is 345025160001.

100061520543 is a `hidden beast` number, since 1 + 0 + 0 + 0 + 615 + 2 + 0 + 5 + 43 = 666.

It is not a de Polignac number, because 100061520543 - 2¹ = 100061520541 is a prime.

It is a super-2 number, since 2×100061520543² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100061520541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12159943 + ... + 12168168.

Almost surely, 2^100061520543 is an apocalyptic number.

100061520543 is a deficient number, since it is larger than the sum of its proper divisors (44788058305).

100061520543 is a wasteful number, since it uses less digits than its factorization.

100061520543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24328574 (or 24328571 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 100061520543 its reverse (345025160001), we get a palindrome (445086680544).

The spelling of 100061520543 in words is "one hundred billion, sixty-one million, five hundred twenty thousand, five hundred forty-three".