256651156652 has 12 divisors (see below), whose sum is σ = 489970390056. Its totient is φ = 116659616640.

The previous prime is 256651156561. The next prime is 256651156691.

256651156652 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 256651156652.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2916490373 + ... + 2916490460.

It is an arithmetic number, because the mean of its divisors is an integer number (40830865838).

Almost surely, 2^256651156652 is an apocalyptic number.

256651156652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256651156652 is a deficient number, since it is larger than the sum of its proper divisors (233319233404).

256651156652 is a wasteful number, since it uses less digits than its factorization.

256651156652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832980848 (or 5832980846 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 50.

The spelling of 256651156652 in words is "two hundred fifty-six billion, six hundred fifty-one million, one hundred fifty-six thousand, six hundred fifty-two".