2048566657 has 4 divisors (see below), whose sum is σ = 2169070596. Its totient is φ = 1928062720.

The previous prime is 2048566651. The next prime is 2048566669. The reversal of 2048566657 is 7566658402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 793210896 + 1255355761 = 28164^2 + 35431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2048566657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2048566657.

It is not an unprimeable number, because it can be changed into a prime (2048566651) 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, 60251944 + ... + 60251977.

It is an arithmetic number, because the mean of its divisors is an integer number (542267649).

Almost surely, 2^2048566657 is an apocalyptic number.

It is an amenable number.

2048566657 is a deficient number, since it is larger than the sum of its proper divisors (120503939).

2048566657 is a wasteful number, since it uses less digits than its factorization.

2048566657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120503938.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The square root of 2048566657 is about 45261.0942974206. The cubic root of 2048566657 is about 1270.0379547216.

The spelling of 2048566657 in words is "two billion, forty-eight million, five hundred sixty-six thousand, six hundred fifty-seven".