720518870111 has 4 divisors (see below), whose sum is σ = 721225955400. Its totient is φ = 719811784824.

The previous prime is 720518870089. The next prime is 720518870161. The reversal of 720518870111 is 111078815027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111078815027 = 4219 ⋅26328233.

It is a cyclic number.

It is not a de Polignac number, because 720518870111 - 2²⁶ = 720451761247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720518870161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353541116 + ... + 353543153.

It is an arithmetic number, because the mean of its divisors is an integer number (180306488850).

Almost surely, 2^720518870111 is an apocalyptic number.

720518870111 is a deficient number, since it is larger than the sum of its proper divisors (707085289).

720518870111 is a wasteful number, since it uses less digits than its factorization.

720518870111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707085288.

The product of its (nonzero) digits is 31360, while the sum is 41.

The spelling of 720518870111 in words is "seven hundred twenty billion, five hundred eighteen million, eight hundred seventy thousand, one hundred eleven".