6516556051 has 8 divisors (see below), whose sum is σ = 6579532800. Its totient is φ = 6453617928.

The previous prime is 6516556019. The next prime is 6516556073. The reversal of 6516556051 is 1506556156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6516556051 - 2⁵ = 6516556019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6516555995 and 6516556013.

It is not an unprimeable number, because it can be changed into a prime (6516553051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421150 + ... + 436348.

It is an arithmetic number, because the mean of its divisors is an integer number (822441600).

Almost surely, 2^6516556051 is an apocalyptic number.

6516556051 is a deficient number, since it is larger than the sum of its proper divisors (62976749).

6516556051 is a wasteful number, since it uses less digits than its factorization.

6516556051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19313.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 6516556051 is about 80725.1884544099. The cubic root of 6516556051 is about 1867.8387387404.

The spelling of 6516556051 in words is "six billion, five hundred sixteen million, five hundred fifty-six thousand, fifty-one".