98155959295661 has 2 divisors, whose sum is σ = 98155959295662. Its totient is φ = 98155959295660.

The previous prime is 98155959295591. The next prime is 98155959295729. The reversal of 98155959295661 is 16659295955189.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82168604796100 + 15987354499561 = 9064690^2 + 3998419^2 .

It is a cyclic number.

It is not a de Polignac number, because 98155959295661 - 2²² = 98155955101357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98155959235661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49077979647830 + 49077979647831.

It is an arithmetic number, because the mean of its divisors is an integer number (49077979647831).

Almost surely, 2^{98155959295661} is an apocalyptic number.

It is an amenable number.

98155959295661 is a deficient number, since it is larger than the sum of its proper divisors (1).

98155959295661 is an equidigital number, since it uses as much as digits as its factorization.

98155959295661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2361960000, while the sum is 80.

The spelling of 98155959295661 in words is "ninety-eight trillion, one hundred fifty-five billion, nine hundred fifty-nine million, two hundred ninety-five thousand, six hundred sixty-one".