99711066 has 128 divisors (see below), whose sum is σ = 261144576. Its totient is φ = 24675840.

The previous prime is 99711013. The next prime is 99711071. The reversal of 99711066 is 66011799.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 727750 + ... + 727886.

It is an arithmetic number, because the mean of its divisors is an integer number (2040192).

Almost surely, 2^99711066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99711066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130572288).

99711066 is an abundant number, since it is smaller than the sum of its proper divisors (161433510).

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

99711066 is a wasteful number, since it uses less digits than its factorization.

99711066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 99711066 is about 9985.5428495400. The cubic root of 99711066 is about 463.7114145116.

The spelling of 99711066 in words is "ninety-nine million, seven hundred eleven thousand, sixty-six".