98166420487 has 2 divisors, whose sum is σ = 98166420488. Its totient is φ = 98166420486.

The previous prime is 98166420481. The next prime is 98166420493. The reversal of 98166420487 is 78402466189.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (98166420481) and next prime (98166420493).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98166420487 is a prime.

It is a super-2 number, since 2×98166420487² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98166420481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49083210243 + 49083210244.

It is an arithmetic number, because the mean of its divisors is an integer number (49083210244).

Almost surely, 2^98166420487 is an apocalyptic number.

98166420487 is a deficient number, since it is larger than the sum of its proper divisors (1).

98166420487 is an equidigital number, since it uses as much as digits as its factorization.

98166420487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 98166420487 in words is "ninety-eight billion, one hundred sixty-six million, four hundred twenty thousand, four hundred eighty-seven".