2989916651520 has 256 divisors, whose sum is σ = 10630668276000. Its totient is φ = 797309927424.

The previous prime is 2989916651437. The next prime is 2989916651549. The reversal of 2989916651520 is 251566199892.

2989916651520 is a `hidden beast` number, since 2 + 9 + 8 + 9 + 91 + 6 + 6 + 515 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (256).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4085736 + ... + 4761624.

Almost surely, 2^{2989916651520} is an apocalyptic number.

2989916651520 is a gapful number since it is divisible by the number (20) 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 2989916651520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5315334138000).

2989916651520 is an abundant number, since it is smaller than the sum of its proper divisors (7640751624480).

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

2989916651520 is an frugal number, since it uses more digits than its factorization.

2989916651520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675933 (or 675899 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 2989916651520 in words is "two trillion, nine hundred eighty-nine billion, nine hundred sixteen million, six hundred fifty-one thousand, five hundred twenty".