998463160502501 has 4 divisors (see below), whose sum is σ = 998463225002604. Its totient is φ = 998463096002400.

The previous prime is 998463160502411. The next prime is 998463160502567. The reversal of 998463160502501 is 105205061364899.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 467370394800001 + 531092765702500 = 21618751^2 + 23045450^2 .

It is a cyclic number.

It is not a de Polignac number, because 998463160502501 - 2¹⁴ = 998463160486117 is a prime.

It is a deceptive number, since it divides R_{998463160502500}.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998463160582501) 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 in 3 ways as a sum of consecutive naturals, for example, 6450011 + ... + 45150071.

It is an arithmetic number, because the mean of its divisors is an integer number (249615806250651).

It is a Poulet number, since it divides 2^{998463160502500}-1.

Almost surely, 2^{998463160502501} is an apocalyptic number.

998463160502501 is the 25800041-st pentagonal number.

It is an amenable number.

998463160502501 is a deficient number, since it is larger than the sum of its proper divisors (64500103).

998463160502501 is a wasteful number, since it uses less digits than its factorization.

998463160502501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64500102.

The product of its (nonzero) digits is 13996800, while the sum is 59.

The spelling of 998463160502501 in words is "nine hundred ninety-eight trillion, four hundred sixty-three billion, one hundred sixty million, five hundred two thousand, five hundred one".