99611378302500 has 315 divisors, whose sum is σ = 326640022041333. Its totient is φ = 26559441216000.

The previous prime is 99611378302481. The next prime is 99611378302519. The reversal of 99611378302500 is 520387311699.

The square root of 99611378302500 is 9980550.

It is a perfect power (a square), and thus also a powerful number.

99611378302500 is a `hidden beast` number, since 9 + 9 + 6 + 11 + 378 + 3 + 0 + 250 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (99611378302481) and next prime (99611378302519).

It can be written as a sum of positive squares in 7 ways, for example, as 97928401390884 + 1682976911616 = 9895878^2 + 1297296^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 104 ways as a sum of consecutive naturals, for example, 13473738804 + ... + 13473746196.

Almost surely, 2^{99611378302500} is an apocalyptic number.

99611378302500 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99611378302500 is the 9980550-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99611378302500

99611378302500 is an abundant number, since it is smaller than the sum of its proper divisors (227028643738833).

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

99611378302500 is an frugal number, since it uses more digits than its factorization.

99611378302500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14828 (or 7403 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 99611378302500 in words is "ninety-nine trillion, six hundred eleven billion, three hundred seventy-eight million, three hundred two thousand, five hundred".