97990041558 has 64 divisors (see below), whose sum is σ = 201942720000. Its totient is φ = 31686196224.

The previous prime is 97990041557. The next prime is 97990041607. The reversal of 97990041558 is 85514009979.

It is a junction number, because it is equal to n+sod(n) for n = 97990041498 and 97990041507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97990041551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12323368 + ... + 12331316.

It is an arithmetic number, because the mean of its divisors is an integer number (3155355000).

Almost surely, 2^97990041558 is an apocalyptic number.

97990041558 is an abundant number, since it is smaller than the sum of its proper divisors (103952678442).

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

97990041558 is a wasteful number, since it uses less digits than its factorization.

97990041558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8469.

The product of its (nonzero) digits is 4082400, while the sum is 57.

The spelling of 97990041558 in words is "ninety-seven billion, nine hundred ninety million, forty-one thousand, five hundred fifty-eight".