99401277217652 has 12 divisors (see below), whose sum is σ = 174300836808000. Its totient is φ = 49601038129656.

The previous prime is 99401277217579. The next prime is 99401277217699. The reversal of 99401277217652 is 25671277210499.

It is a super-2 number, since 2×99401277217652² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24900117548 + ... + 24900121539.

It is an arithmetic number, because the mean of its divisors is an integer number (14525069734000).

Almost surely, 2^{99401277217652} is an apocalyptic number.

It is an amenable number.

99401277217652 is a deficient number, since it is larger than the sum of its proper divisors (74899559590348).

99401277217652 is a wasteful number, since it uses less digits than its factorization.

99401277217652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49800239590 (or 49800239588 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 62.

The spelling of 99401277217652 in words is "ninety-nine trillion, four hundred one billion, two hundred seventy-seven million, two hundred seventeen thousand, six hundred fifty-two".