722120502157 has 8 divisors (see below), whose sum is σ = 745938590720. Its totient is φ = 698335156080.

The previous prime is 722120502007. The next prime is 722120502241. The reversal of 722120502157 is 751205021227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722120502157 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 (722120502457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8140782 + ... + 8229007.

It is an arithmetic number, because the mean of its divisors is an integer number (93242323840).

Almost surely, 2^722120502157 is an apocalyptic number.

It is an amenable number.

722120502157 is a deficient number, since it is larger than the sum of its proper divisors (23818088563).

722120502157 is a wasteful number, since it uses less digits than its factorization.

722120502157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16371243.

The product of its (nonzero) digits is 19600, while the sum is 34.

The spelling of 722120502157 in words is "seven hundred twenty-two billion, one hundred twenty million, five hundred two thousand, one hundred fifty-seven".