6151012520 has 64 divisors (see below), whose sum is σ = 14587290000. Its totient is φ = 2330718208.

The previous prime is 6151012447. The next prime is 6151012537. The reversal of 6151012520 is 252101516.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1343808964 + 4807203556 = 36658^2 + 69334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11456 + ... + 111504.

Almost surely, 2^6151012520 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 6151012520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7293645000).

6151012520 is an abundant number, since it is smaller than the sum of its proper divisors (8436277480).

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

6151012520 is a wasteful number, since it uses less digits than its factorization.

6151012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100142 (or 100138 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 6151012520 is about 78428.3910328396. The cubic root of 6151012520 is about 1832.2393401190.

The spelling of 6151012520 in words is "six billion, one hundred fifty-one million, twelve thousand, five hundred twenty".