720563516 has 6 divisors (see below), whose sum is σ = 1260986160. Its totient is φ = 360281756.

The previous prime is 720563489. The next prime is 720563539. The reversal of 720563516 is 615365027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90070436 + ... + 90070443.

It is an arithmetic number, because the mean of its divisors is an integer number (210164360).

Almost surely, 2^720563516 is an apocalyptic number.

It is an amenable number.

720563516 is a deficient number, since it is larger than the sum of its proper divisors (540422644).

720563516 is a wasteful number, since it uses less digits than its factorization.

720563516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180140883 (or 180140881 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 720563516 is about 26843.3141769045. The cubic root of 720563516 is about 896.5147164164.

The spelling of 720563516 in words is "seven hundred twenty million, five hundred sixty-three thousand, five hundred sixteen".