2656533478 has 8 divisors (see below), whose sum is σ = 3991018680. Its totient is φ = 1326193920.

The previous prime is 2656533443. The next prime is 2656533479. The reversal of 2656533478 is 8743356562.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656533479) 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, 1034808 + ... + 1037371.

It is an arithmetic number, because the mean of its divisors is an integer number (498877335).

Almost surely, 2^2656533478 is an apocalyptic number.

2656533478 is a deficient number, since it is larger than the sum of its proper divisors (1334485202).

2656533478 is a wasteful number, since it uses less digits than its factorization.

2656533478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072822.

The product of its digits is 3628800, while the sum is 49.

The square root of 2656533478 is about 51541.5703874067. The cubic root of 2656533478 is about 1384.9638289849.

The spelling of 2656533478 in words is "two billion, six hundred fifty-six million, five hundred thirty-three thousand, four hundred seventy-eight".