2656443256526 has 4 divisors (see below), whose sum is σ = 3984664884792. Its totient is φ = 1328221628262.

The previous prime is 2656443256513. The next prime is 2656443256573. The reversal of 2656443256526 is 6256523446562.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664110814130 + ... + 664110814133.

It is an arithmetic number, because the mean of its divisors is an integer number (996166221198).

Almost surely, 2^{2656443256526} is an apocalyptic number.

2656443256526 is a deficient number, since it is larger than the sum of its proper divisors (1328221628266).

2656443256526 is a wasteful number, since it uses less digits than its factorization.

2656443256526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328221628265.

The product of its digits is 62208000, while the sum is 56.

The spelling of 2656443256526 in words is "two trillion, six hundred fifty-six billion, four hundred forty-three million, two hundred fifty-six thousand, five hundred twenty-six".