6157978176 has 168 divisors, whose sum is σ = 19013667840. Its totient is φ = 1753801728.

The previous prime is 6157978171. The next prime is 6157978193. The reversal of 6157978176 is 6718797516.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is not an unprimeable number, because it can be changed into a prime (6157978171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3602410 + ... + 3604118.

Almost surely, 2^6157978176 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6157978176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9506833920).

6157978176 is an abundant number, since it is smaller than the sum of its proper divisors (12855689664).

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

6157978176 is a wasteful number, since it uses less digits than its factorization.

6157978176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2104 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 57.

The square root of 6157978176 is about 78472.7862128012. The cubic root of 6157978176 is about 1832.9307132469.

The spelling of 6157978176 in words is "six billion, one hundred fifty-seven million, nine hundred seventy-eight thousand, one hundred seventy-six".