720386996736 has 320 divisors, whose sum is σ = 2126559891456. Its totient is φ = 214891315200.

The previous prime is 720386996731. The next prime is 720386996741. The reversal of 720386996736 is 637699683027.

It is an interprime number because it is at equal distance from previous prime (720386996731) and next prime (720386996741).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (720386996731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314990985 + ... + 314993271.

Almost surely, 2^720386996736 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 720386996736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063279945728).

720386996736 is an abundant number, since it is smaller than the sum of its proper divisors (1406172894720).

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

720386996736 is a wasteful number, since it uses less digits than its factorization.

720386996736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603 (or 2587 counting only the distinct ones).

The product of its (nonzero) digits is 123451776, while the sum is 66.

The spelling of 720386996736 in words is "seven hundred twenty billion, three hundred eighty-six million, nine hundred ninety-six thousand, seven hundred thirty-six".