99623487600 has 1080 divisors, whose sum is σ = 449421183120. Its totient is φ = 21006397440.

The previous prime is 99623487571. The next prime is 99623487617. The reversal of 99623487600 is 678432699.

It is a happy number.

99623487600 is a `hidden beast` number, since 9 + 9 + 6 + 23 + 4 + 8 + 7 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 61915596 + ... + 61917204.

Almost surely, 2^99623487600 is an apocalyptic number.

99623487600 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99623487600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224710591560).

99623487600 is an abundant number, since it is smaller than the sum of its proper divisors (349797695520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99623487600 is a wasteful number, since it uses less digits than its factorization.

99623487600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 99623487600 in words is "ninety-nine billion, six hundred twenty-three million, four hundred eighty-seven thousand, six hundred".