256473615220606 has 32 divisors (see below), whose sum is σ = 459284323138560. Its totient is φ = 105023847018816.

The previous prime is 256473615220597. The next prime is 256473615220609. The reversal of 256473615220606 is 606022516374652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256473615220609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433056591 + ... + 433648426.

It is an arithmetic number, because the mean of its divisors is an integer number (14352635098080).

Almost surely, 2^{256473615220606} is an apocalyptic number.

256473615220606 is a deficient number, since it is larger than the sum of its proper divisors (202810707917954).

256473615220606 is a wasteful number, since it uses less digits than its factorization.

256473615220606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866705968.

The product of its (nonzero) digits is 21772800, while the sum is 55.

The spelling of 256473615220606 in words is "two hundred fifty-six trillion, four hundred seventy-three billion, six hundred fifteen million, two hundred twenty thousand, six hundred six".