256763160506 has 8 divisors (see below), whose sum is σ = 388084777344. Its totient is φ = 127401568060.

The previous prime is 256763160503. The next prime is 256763160541. The reversal of 256763160506 is 605061367652.

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

It is not an unprimeable number, because it can be changed into a prime (256763160503) 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, 490005770 + ... + 490006293.

It is an arithmetic number, because the mean of its divisors is an integer number (48510597168).

Almost surely, 2^256763160506 is an apocalyptic number.

256763160506 is a deficient number, since it is larger than the sum of its proper divisors (131321616838).

256763160506 is a wasteful number, since it uses less digits than its factorization.

256763160506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980012196.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 256763160506 in words is "two hundred fifty-six billion, seven hundred sixty-three million, one hundred sixty thousand, five hundred six".