2656646545 has 8 divisors (see below), whose sum is σ = 3643401024. Its totient is φ = 1821700464.

The previous prime is 2656646527. The next prime is 2656646569. The reversal of 2656646545 is 5456466562.

2656646545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2656646545 - 2⁹ = 2656646033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37952059 + ... + 37952128.

It is an arithmetic number, because the mean of its divisors is an integer number (455425128).

Almost surely, 2^2656646545 is an apocalyptic number.

It is an amenable number.

2656646545 is a deficient number, since it is larger than the sum of its proper divisors (986754479).

2656646545 is an equidigital number, since it uses as much as digits as its factorization.

2656646545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75904199.

The product of its digits is 5184000, while the sum is 49.

The square root of 2656646545 is about 51542.6672282295. The cubic root of 2656646545 is about 1384.9834775840.

The spelling of 2656646545 in words is "two billion, six hundred fifty-six million, six hundred forty-six thousand, five hundred forty-five".