157171822339 has 24 divisors (see below), whose sum is σ = 191039558400. Its totient is φ = 128687250384.

The previous prime is 157171822333. The next prime is 157171822373. The reversal of 157171822339 is 933228171751.

It is a de Polignac number, because none of the positive numbers 2^k-157171822339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157171822292 and 157171822301.

It is not an unprimeable number, because it can be changed into a prime (157171822333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 743512 + ... + 931210.

It is an arithmetic number, because the mean of its divisors is an integer number (7959981600).

Almost surely, 2^157171822339 is an apocalyptic number.

157171822339 is a deficient number, since it is larger than the sum of its proper divisors (33867736061).

157171822339 is a wasteful number, since it uses less digits than its factorization.

157171822339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188479 (or 188472 counting only the distinct ones).

The product of its digits is 635040, while the sum is 49.

The spelling of 157171822339 in words is "one hundred fifty-seven billion, one hundred seventy-one million, eight hundred twenty-two thousand, three hundred thirty-nine".