7272740665120 has 288 divisors, whose sum is σ = 21528297806400. Its totient is φ = 2307335030784.

The previous prime is 7272740665111. The next prime is 7272740665121. The reversal of 7272740665120 is 215660472727.

It is a super-2 number, since 2×7272740665120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (7272740665121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5837566 + ... + 6972994.

It is an arithmetic number, because the mean of its divisors is an integer number (74751034050).

Almost surely, 2^{7272740665120} is an apocalyptic number.

7272740665120 is a gapful number since it is divisible by the number (70) 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 7272740665120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10764148903200).

7272740665120 is an abundant number, since it is smaller than the sum of its proper divisors (14255557141280).

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

7272740665120 is a wasteful number, since it uses less digits than its factorization.

7272740665120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135520 (or 1135505 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 7272740665120 in words is "seven trillion, two hundred seventy-two billion, seven hundred forty million, six hundred sixty-five thousand, one hundred twenty".