157321755572 has 24 divisors (see below), whose sum is σ = 291520111176. Its totient is φ = 74030681088.

The previous prime is 157321755529. The next prime is 157321755601. The reversal of 157321755572 is 275557123751.

157321755572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 107147547556 + 50174208016 = 327334^2 + 223996^2 .

It is a super-2 number, since 2×157321755572² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157321755572.

It is a congruent number.

It is an unprimeable number.

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, 3018728 + ... + 3070400.

It is an arithmetic number, because the mean of its divisors is an integer number (12146671299).

Almost surely, 2^157321755572 is an apocalyptic number.

It is an amenable number.

157321755572 is a deficient number, since it is larger than the sum of its proper divisors (134198355604).

157321755572 is a wasteful number, since it uses less digits than its factorization.

157321755572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96467 (or 96465 counting only the distinct ones).

The product of its digits is 2572500, while the sum is 50.

The spelling of 157321755572 in words is "one hundred fifty-seven billion, three hundred twenty-one million, seven hundred fifty-five thousand, five hundred seventy-two".