99559040774 has 4 divisors (see below), whose sum is σ = 149338561164. Its totient is φ = 49779520386.

The previous prime is 99559040731. The next prime is 99559040783. The reversal of 99559040774 is 47704095599.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 24889760192 + ... + 24889760195.

It is an arithmetic number, because the mean of its divisors is an integer number (37334640291).

Almost surely, 2^99559040774 is an apocalyptic number.

99559040774 is a deficient number, since it is larger than the sum of its proper divisors (49779520390).

99559040774 is a wasteful number, since it uses less digits than its factorization.

99559040774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49779520389.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 99559040774 in words is "ninety-nine billion, five hundred fifty-nine million, forty thousand, seven hundred seventy-four".