256010552464 has 40 divisors (see below), whose sum is σ = 497265282360. Its totient is φ = 127684224000.

The previous prime is 256010552461. The next prime is 256010552467. The reversal of 256010552464 is 464255010652.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (256010552461) and next prime (256010552467).

It can be written as a sum of positive squares in 4 ways, for example, as 94814726400 + 161195826064 = 307920^2 + 401492^2 .

It is not an unprimeable number, because it can be changed into a prime (256010552461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41959014 + ... + 41965114.

It is an arithmetic number, because the mean of its divisors is an integer number (12431632059).

Almost surely, 2^256010552464 is an apocalyptic number.

It is an amenable number.

256010552464 is a deficient number, since it is larger than the sum of its proper divisors (241254729896).

256010552464 is a wasteful number, since it uses less digits than its factorization.

256010552464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12259 (or 12253 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 256010552464 in words is "two hundred fifty-six billion, ten million, five hundred fifty-two thousand, four hundred sixty-four".