2656553534403 has 4 divisors (see below), whose sum is σ = 3542071379208. Its totient is φ = 1771035689600.

The previous prime is 2656553534399. The next prime is 2656553534417. The reversal of 2656553534403 is 3044353556562.

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

It is a cyclic number.

It is not a de Polignac number, because 2656553534403 - 2² = 2656553534399 is a prime.

It is a super-2 number, since 2×2656553534403² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2656553534423) 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, 442758922398 + ... + 442758922403.

It is an arithmetic number, because the mean of its divisors is an integer number (885517844802).

Almost surely, 2^{2656553534403} is an apocalyptic number.

2656553534403 is a deficient number, since it is larger than the sum of its proper divisors (885517844805).

2656553534403 is an equidigital number, since it uses as much as digits as its factorization.

2656553534403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885517844804.

The product of its (nonzero) digits is 19440000, while the sum is 51.

The spelling of 2656553534403 in words is "two trillion, six hundred fifty-six billion, five hundred fifty-three million, five hundred thirty-four thousand, four hundred three".