3256402026663 has 32 divisors (see below), whose sum is σ = 4853408071680. Its totient is φ = 2157874452000.

The previous prime is 3256402026637. The next prime is 3256402026679. The reversal of 3256402026663 is 3666202046523.

It is not a de Polignac number, because 3256402026663 - 2⁶ = 3256402026599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256402025663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2492538 + ... + 3567288.

It is an arithmetic number, because the mean of its divisors is an integer number (151669002240).

Almost surely, 2^{3256402026663} is an apocalyptic number.

3256402026663 is a deficient number, since it is larger than the sum of its proper divisors (1597006045017).

3256402026663 is a wasteful number, since it uses less digits than its factorization.

3256402026663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075436 (or 1075430 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 3256402026663 in words is "three trillion, two hundred fifty-six billion, four hundred two million, twenty-six thousand, six hundred sixty-three".