256010154408 has 96 divisors (see below), whose sum is σ = 700588761600. Its totient is φ = 84451071744.

The previous prime is 256010154391. The next prime is 256010154437. The reversal of 256010154408 is 804451010652.

It is a happy number.

256010154408 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 101 + 544 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3091641 + ... + 3173367.

It is an arithmetic number, because the mean of its divisors is an integer number (7297799600).

Almost surely, 2^256010154408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256010154408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350294380800).

256010154408 is an abundant number, since it is smaller than the sum of its proper divisors (444578607192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256010154408 is a wasteful number, since it uses less digits than its factorization.

256010154408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82191 (or 82184 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 256010154408 in words is "two hundred fifty-six billion, ten million, one hundred fifty-four thousand, four hundred eight".