720853618157 has 16 divisors (see below), whose sum is σ = 753052809600. Its totient is φ = 688726433472.

The previous prime is 720853618129. The next prime is 720853618159. The reversal of 720853618157 is 751816358027.

It is a cyclic number.

It is not a de Polignac number, because 720853618157 - 2¹⁶ = 720853552621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720853618099 and 720853618108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720853618159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89067203 + ... + 89075295.

It is an arithmetic number, because the mean of its divisors is an integer number (47065800600).

Almost surely, 2^720853618157 is an apocalyptic number.

It is an amenable number.

720853618157 is a deficient number, since it is larger than the sum of its proper divisors (32199191443).

720853618157 is a wasteful number, since it uses less digits than its factorization.

720853618157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12052.

The product of its (nonzero) digits is 2822400, while the sum is 53.

The spelling of 720853618157 in words is "seven hundred twenty billion, eight hundred fifty-three million, six hundred eighteen thousand, one hundred fifty-seven".