157161768 has 32 divisors (see below), whose sum is σ = 413584800. Its totient is φ = 49629888.

The previous prime is 157161761. The next prime is 157161769. The reversal of 157161768 is 867161751.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (157161761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171871 + ... + 172782.

It is an arithmetic number, because the mean of its divisors is an integer number (12924525).

Almost surely, 2^157161768 is an apocalyptic number.

It is an amenable number.

157161768 is an abundant number, since it is smaller than the sum of its proper divisors (256423032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157161768 is a wasteful number, since it uses less digits than its factorization.

157161768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344681 (or 344677 counting only the distinct ones).

The product of its digits is 70560, while the sum is 42.

The square root of 157161768 is about 12536.4176701321. The cubic root of 157161768 is about 539.6542917562.

The spelling of 157161768 in words is "one hundred fifty-seven million, one hundred sixty-one thousand, seven hundred sixty-eight".