2656493571 has 8 divisors (see below), whose sum is σ = 3656249344. Its totient is φ = 1713866760.

The previous prime is 2656493527. The next prime is 2656493573. The reversal of 2656493571 is 1753946562.

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

It is not a de Polignac number, because 2656493571 - 2¹⁵ = 2656460803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2656493571.

It is not an unprimeable number, because it can be changed into a prime (2656493573) 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, 14282131 + ... + 14282316.

It is an arithmetic number, because the mean of its divisors is an integer number (457031168).

Almost surely, 2^2656493571 is an apocalyptic number.

2656493571 is a deficient number, since it is larger than the sum of its proper divisors (999755773).

2656493571 is a wasteful number, since it uses less digits than its factorization.

2656493571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28564481.

The product of its digits is 1360800, while the sum is 48.

The square root of 2656493571 is about 51541.1832518424. The cubic root of 2656493571 is about 1384.9568938784.

The spelling of 2656493571 in words is "two billion, six hundred fifty-six million, four hundred ninety-three thousand, five hundred seventy-one".