720383279616 has 2400 divisors, whose sum is σ = 3062934084672. Its totient is φ = 165542952960.

The previous prime is 720383279593. The next prime is 720383279639. The reversal of 720383279616 is 616972383027.

It is an interprime number because it is at equal distance from previous prime (720383279593) and next prime (720383279639).

It is a super-2 number, since 2×720383279616² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 10751989215 + ... + 10751989281.

Almost surely, 2^720383279616 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 720383279616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531467042336).

720383279616 is an abundant number, since it is smaller than the sum of its proper divisors (2342550805056).

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

720383279616 is a wasteful number, since it uses less digits than its factorization.

720383279616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

It can be divided in two parts, 720383 and 279616, that added together give a palindrome (999999).

The spelling of 720383279616 in words is "seven hundred twenty billion, three hundred eighty-three million, two hundred seventy-nine thousand, six hundred sixteen".