99127555072 has 132 divisors (see below), whose sum is σ = 248243906820. Its totient is φ = 39215038464.

The previous prime is 99127555061. The next prime is 99127555091. The reversal of 99127555072 is 27055572199.

It can be written as a sum of positive squares in 2 ways, for example, as 46822035456 + 52305519616 = 216384^2 + 228704^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 576304 + ... + 728272.

Almost surely, 2^99127555072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99127555072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124121953410).

99127555072 is an abundant number, since it is smaller than the sum of its proper divisors (149116351748).

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

99127555072 is a wasteful number, since it uses less digits than its factorization.

99127555072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152016 (or 151991 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 52.

The spelling of 99127555072 in words is "ninety-nine billion, one hundred twenty-seven million, five hundred fifty-five thousand, seventy-two".