7299725665920 has 384 divisors, whose sum is σ = 24635162759040. Its totient is φ = 1838268407808.

The previous prime is 7299725665913. The next prime is 7299725665937. The reversal of 7299725665920 is 295665279927.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219702429 + ... + 219735651.

It is an arithmetic number, because the mean of its divisors is an integer number (64154069685).

Almost surely, 2^{7299725665920} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7299725665920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12317581379520).

7299725665920 is an abundant number, since it is smaller than the sum of its proper divisors (17335437093120).

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

7299725665920 is a wasteful number, since it uses less digits than its factorization.

7299725665920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33600 (or 33569 counting only the distinct ones).

The product of its (nonzero) digits is 257191200, while the sum is 69.

The spelling of 7299725665920 in words is "seven trillion, two hundred ninety-nine billion, seven hundred twenty-five million, six hundred sixty-five thousand, nine hundred twenty".