99906092280 has 128 divisors (see below), whose sum is σ = 333780480000. Its totient is φ = 26580811392.

The previous prime is 99906092249. The next prime is 99906092281. The reversal of 99906092280 is 8229060999.

99906092280 is a `hidden beast` number, since 9 + 9 + 9 + 0 + 609 + 2 + 28 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99906092281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368761 + ... + 579479.

It is an arithmetic number, because the mean of its divisors is an integer number (2607660000).

Almost surely, 2^99906092280 is an apocalyptic number.

99906092280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99906092280 is the 158040-th decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99906092280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166890240000).

99906092280 is an abundant number, since it is smaller than the sum of its proper divisors (233874387720).

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

99906092280 is a wasteful number, since it uses less digits than its factorization.

99906092280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211178 (or 211168 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 99906092280 in words is "ninety-nine billion, nine hundred six million, ninety-two thousand, two hundred eighty".