6129657516 has 12 divisors (see below), whose sum is σ = 14302534232. Its totient is φ = 2043219168.

The previous prime is 6129657511. The next prime is 6129657517. The reversal of 6129657516 is 6157569216.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (6129657511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255402385 + ... + 255402408.

Almost surely, 2^6129657516 is an apocalyptic number.

It is an amenable number.

6129657516 is an abundant number, since it is smaller than the sum of its proper divisors (8172876716).

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

6129657516 is a wasteful number, since it uses less digits than its factorization.

6129657516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510804800 (or 510804798 counting only the distinct ones).

The product of its digits is 680400, while the sum is 48.

The square root of 6129657516 is about 78292.1293362238. The cubic root of 6129657516 is about 1830.1165000932.

The spelling of 6129657516 in words is "six billion, one hundred twenty-nine million, six hundred fifty-seven thousand, five hundred sixteen".