256252662141 has 16 divisors (see below), whose sum is σ = 390509973504. Its totient is φ = 146418945264.

The previous prime is 256252662121. The next prime is 256252662181. The reversal of 256252662141 is 141266252652.

It is a happy number.

It is not a de Polignac number, because 256252662141 - 2¹³ = 256252653949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256252662093 and 256252662102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256252662101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177945 + ... + 737678.

It is an arithmetic number, because the mean of its divisors is an integer number (24406873344).

Almost surely, 2^256252662141 is an apocalyptic number.

256252662141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

256252662141 is a deficient number, since it is larger than the sum of its proper divisors (134257311363).

256252662141 is a wasteful number, since it uses less digits than its factorization.

256252662141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928960.

The product of its digits is 345600, while the sum is 42.

The spelling of 256252662141 in words is "two hundred fifty-six billion, two hundred fifty-two million, six hundred sixty-two thousand, one hundred forty-one".