999997753311120 has 80 divisors (see below), whose sum is σ = 3234775341163392. Its totient is φ = 255071890698240.

The previous prime is 999997753311119. The next prime is 999997753311121. The reversal of 999997753311120 is 21113357799999.

It is an interprime number because it is at equal distance from previous prime (999997753311119) and next prime (999997753311121).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×999997753311120² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (999997753311121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90579501121 + ... + 90579512160.

Almost surely, 2^{999997753311120} is an apocalyptic number.

It is an amenable number.

999997753311120 is an abundant number, since it is smaller than the sum of its proper divisors (2234777587852272).

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

999997753311120 is a wasteful number, since it uses less digits than its factorization.

999997753311120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181159013320 (or 181159013314 counting only the distinct ones).

The product of its (nonzero) digits is 260406090, while the sum is 75.

The spelling of 999997753311120 in words is "nine hundred ninety-nine trillion, nine hundred ninety-seven billion, seven hundred fifty-three million, three hundred eleven thousand, one hundred twenty".