256613032730132 has 12 divisors (see below), whose sum is σ = 483616869376116. Its totient is φ = 118436784336960.

The previous prime is 256613032730123. The next prime is 256613032730141. The reversal of 256613032730132 is 231037230316652.

It is an interprime number because it is at equal distance from previous prime (256613032730123) and next prime (256613032730141).

It can be written as a sum of positive squares in 2 ways, for example, as 155829383450896 + 100783649279236 = 12483164^2 + 10039106^2 .

It is a congruent number.

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, 2467433006969 + ... + 2467433007072.

It is an arithmetic number, because the mean of its divisors is an integer number (40301405781343).

Almost surely, 2^{256613032730132} is an apocalyptic number.

It is an amenable number.

256613032730132 is a deficient number, since it is larger than the sum of its proper divisors (227003836645984).

256613032730132 is a wasteful number, since it uses less digits than its factorization.

256613032730132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934866014058 (or 4934866014056 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 44.

The spelling of 256613032730132 in words is "two hundred fifty-six trillion, six hundred thirteen billion, thirty-two million, seven hundred thirty thousand, one hundred thirty-two".