14899779915020 has 768 divisors, whose sum is σ = 46800476835840. Its totient is φ = 3829756723200.

The previous prime is 14899779914933. The next prime is 14899779915073. The reversal of 14899779915020 is 2051997799841.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 516281351 + ... + 516310209.

It is an arithmetic number, because the mean of its divisors is an integer number (60938120880).

Almost surely, 2^{14899779915020} is an apocalyptic number.

14899779915020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14899779915020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23400238417920).

14899779915020 is an abundant number, since it is smaller than the sum of its proper divisors (31900696920820).

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

14899779915020 is a wasteful number, since it uses less digits than its factorization.

14899779915020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28994 (or 28992 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 71.

The spelling of 14899779915020 in words is "fourteen trillion, eight hundred ninety-nine billion, seven hundred seventy-nine million, nine hundred fifteen thousand, twenty".