6561016053 has 8 divisors (see below), whose sum is σ = 8784321216. Its totient is φ = 4355860800.

The previous prime is 6561016051. The next prime is 6561016061. The reversal of 6561016053 is 3506101656.

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

It is not a de Polignac number, because 6561016053 - 2¹ = 6561016051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6561016051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4536633 + ... + 4538078.

It is an arithmetic number, because the mean of its divisors is an integer number (1098040152).

Almost surely, 2^6561016053 is an apocalyptic number.

It is an amenable number.

6561016053 is a deficient number, since it is larger than the sum of its proper divisors (2223305163).

6561016053 is a wasteful number, since it uses less digits than its factorization.

6561016053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9074955.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 6561016053 is about 81000.0990925320. The cubic root of 6561016053 is about 1872.0769675669.

The spelling of 6561016053 in words is "six billion, five hundred sixty-one million, sixteen thousand, fifty-three".