720582450066 has 24 divisors (see below), whose sum is σ = 1629142931520. Its totient is φ = 229750925976.

The previous prime is 720582450059. The next prime is 720582450073. The reversal of 720582450066 is 660054285027.

720582450066 is a `hidden beast` number, since 7 + 2 + 0 + 5 + 82 + 4 + 500 + 66 = 666.

It is an interprime number because it is at equal distance from previous prime (720582450059) and next prime (720582450073).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 870268246 + ... + 870269073.

It is an arithmetic number, because the mean of its divisors is an integer number (67880955480).

Almost surely, 2^720582450066 is an apocalyptic number.

720582450066 is an abundant number, since it is smaller than the sum of its proper divisors (908560481454).

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

720582450066 is a wasteful number, since it uses less digits than its factorization.

720582450066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740537350 (or 1740537347 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 720582450066 in words is "seven hundred twenty billion, five hundred eighty-two million, four hundred fifty thousand, sixty-six".