99180820008 has 40 divisors (see below), whose sum is σ = 277798131930. Its totient is φ = 33060273120.

The previous prime is 99180820007. The next prime is 99180820009. The reversal of 99180820008 is 80002808199.

It is an interprime number because it is at equal distance from previous prime (99180820007) and next prime (99180820009).

It can be written as a sum of positive squares in only one way, i.e., 66449497284 + 32731322724 = 257778^2 + 180918^2 .

It is not an unprimeable number, because it can be changed into a prime (99180820007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 76527763 + ... + 76529058.

Almost surely, 2^99180820008 is an apocalyptic number.

It is an amenable number.

99180820008 is an abundant number, since it is smaller than the sum of its proper divisors (178617311922).

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

99180820008 is a wasteful number, since it uses less digits than its factorization.

99180820008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153056839 (or 153056826 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 99180820008 in words is "ninety-nine billion, one hundred eighty million, eight hundred twenty thousand, eight".