99218436404 has 24 divisors (see below), whose sum is σ = 183997642248. Its totient is φ = 46652497920.

The previous prime is 99218436347. The next prime is 99218436409. The reversal of 99218436404 is 40463481299.

It can be written as a sum of positive squares in 4 ways, for example, as 20115748900 + 79102687504 = 141830^2 + 281252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99218436409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518957 + ... + 683924.

It is an arithmetic number, because the mean of its divisors is an integer number (7666568427).

Almost surely, 2^99218436404 is an apocalyptic number.

It is an amenable number.

99218436404 is a deficient number, since it is larger than the sum of its proper divisors (84779205844).

99218436404 is a wasteful number, since it uses less digits than its factorization.

99218436404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204115 (or 1204113 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 99218436404 in words is "ninety-nine billion, two hundred eighteen million, four hundred thirty-six thousand, four hundred four".