157321115177812 has 12 divisors (see below), whose sum is σ = 275312039723476. Its totient is φ = 78660532399680.

The previous prime is 157321115177803. The next prime is 157321115177873. The reversal of 157321115177812 is 218771511123751.

157321115177812 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 2 ways, for example, as 41910656136336 + 115410459041476 = 6473844^2 + 10742926^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157321115177812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19472038 + ... + 26340130.

Almost surely, 2^{157321115177812} is an apocalyptic number.

It is an amenable number.

157321115177812 is a deficient number, since it is larger than the sum of its proper divisors (117990924545664).

157321115177812 is a wasteful number, since it uses less digits than its factorization.

157321115177812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594618 (or 12594616 counting only the distinct ones).

The product of its digits is 823200, while the sum is 52.

The spelling of 157321115177812 in words is "one hundred fifty-seven trillion, three hundred twenty-one billion, one hundred fifteen million, one hundred seventy-seven thousand, eight hundred twelve".