98566181980 has 24 divisors (see below), whose sum is σ = 236558837088. Its totient is φ = 33794119488.

The previous prime is 98566181899. The next prime is 98566181981. The reversal of 98566181980 is 8918166589.

98566181980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×98566181980² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98566181981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352021939 + ... + 352022218.

It is an arithmetic number, because the mean of its divisors is an integer number (9856618212).

Almost surely, 2^98566181980 is an apocalyptic number.

It is an amenable number.

98566181980 is an abundant number, since it is smaller than the sum of its proper divisors (137992655108).

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

98566181980 is a wasteful number, since it uses less digits than its factorization.

98566181980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704044173 (or 704044171 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 61.

The spelling of 98566181980 in words is "ninety-eight billion, five hundred sixty-six million, one hundred eighty-one thousand, nine hundred eighty".