2656605454 has 8 divisors (see below), whose sum is σ = 3993092208. Its totient is φ = 1325574720.

The previous prime is 2656605433. The next prime is 2656605463. The reversal of 2656605454 is 4545066562.

It is a happy number.

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

It is a super-2 number, since 2×2656605454² = 14115105076445092232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2656605454.

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, 1362787 + ... + 1364734.

It is an arithmetic number, because the mean of its divisors is an integer number (499136526).

Almost surely, 2^2656605454 is an apocalyptic number.

2656605454 is a deficient number, since it is larger than the sum of its proper divisors (1336486754).

2656605454 is a wasteful number, since it uses less digits than its factorization.

2656605454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728010.

The product of its (nonzero) digits is 864000, while the sum is 43.

The square root of 2656605454 is about 51542.2686151861. The cubic root of 2656605454 is about 1384.9763369215.

The spelling of 2656605454 in words is "two billion, six hundred fifty-six million, six hundred five thousand, four hundred fifty-four".