2656154645 has 4 divisors (see below), whose sum is σ = 3187385580. Its totient is φ = 2124923712.

The previous prime is 2656154639. The next prime is 2656154653. The reversal of 2656154645 is 5464516562.

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 1368852004 + 1287302641 = 36998^2 + 35879^2 .

It is a cyclic number.

It is not a de Polignac number, because 2656154645 - 2²² = 2651960341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2656154596 and 2656154605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265615460 + ... + 265615469.

It is an arithmetic number, because the mean of its divisors is an integer number (796846395).

Almost surely, 2^2656154645 is an apocalyptic number.

It is an amenable number.

2656154645 is a deficient number, since it is larger than the sum of its proper divisors (531230935).

2656154645 is an equidigital number, since it uses as much as digits as its factorization.

2656154645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531230934.

The product of its digits is 864000, while the sum is 44.

The square root of 2656154645 is about 51537.8952325374. The cubic root of 2656154645 is about 1384.8979919397.

The spelling of 2656154645 in words is "two billion, six hundred fifty-six million, one hundred fifty-four thousand, six hundred forty-five".