6151556556 has 96 divisors (see below), whose sum is σ = 16988590080. Its totient is φ = 1918248192.

The previous prime is 6151556533. The next prime is 6151556561. The reversal of 6151556556 is 6556551516.

It is a super-2 number, since 2×6151556556² = 75683296123333162272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296581 + ... + 316643.

It is an arithmetic number, because the mean of its divisors is an integer number (176964480).

Almost surely, 2^6151556556 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 6151556556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8494295040).

6151556556 is an abundant number, since it is smaller than the sum of its proper divisors (10837033524).

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

6151556556 is a wasteful number, since it uses less digits than its factorization.

6151556556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260 (or 20252 counting only the distinct ones).

The product of its digits is 675000, while the sum is 45.

The square root of 6151556556 is about 78431.8593174993. The cubic root of 6151556556 is about 1832.2933569589.

The spelling of 6151556556 in words is "six billion, one hundred fifty-one million, five hundred fifty-six thousand, five hundred fifty-six".