99963102420 has 144 divisors (see below), whose sum is σ = 307884665088. Its totient is φ = 26247836160.

The previous prime is 99963102419. The next prime is 99963102431. The reversal of 99963102420 is 2420136999.

It is a happy number.

99963102420 is a `hidden beast` number, since 9 + 9 + 9 + 631 + 0 + 2 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10947897 + ... + 10957023.

It is an arithmetic number, because the mean of its divisors is an integer number (2138087952).

Almost surely, 2^99963102420 is an apocalyptic number.

99963102420 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 99963102420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153942332544).

99963102420 is an abundant number, since it is smaller than the sum of its proper divisors (207921562668).

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

99963102420 is a wasteful number, since it uses less digits than its factorization.

99963102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10070 (or 10065 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 99963102420 in words is "ninety-nine billion, nine hundred sixty-three million, one hundred two thousand, four hundred twenty".