72660039750 has 192 divisors, whose sum is σ = 203740992000. Its totient is φ = 18664992000.

The previous prime is 72660039707. The next prime is 72660039763. The reversal of 72660039750 is 5793006627.

72660039750 is a `hidden beast` number, since 7 + 2 + 6 + 600 + 39 + 7 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 72660039696 and 72660039705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15970476 + ... + 15975024.

It is an arithmetic number, because the mean of its divisors is an integer number (1061151000).

Almost surely, 2^72660039750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72660039750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101870496000).

72660039750 is an abundant number, since it is smaller than the sum of its proper divisors (131080952250).

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

72660039750 is a wasteful number, since it uses less digits than its factorization.

72660039750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832 (or 4819 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 72660039750 in words is "seventy-two billion, six hundred sixty million, thirty-nine thousand, seven hundred fifty".