256535654030 has 32 divisors (see below), whose sum is σ = 490654524384. Its totient is φ = 96236845056.

The previous prime is 256535654017. The next prime is 256535654059. The reversal of 256535654030 is 30456535652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2618027 + ... + 2714246.

It is an arithmetic number, because the mean of its divisors is an integer number (15332953887).

Almost surely, 2^256535654030 is an apocalyptic number.

256535654030 is a deficient number, since it is larger than the sum of its proper divisors (234118870354).

256535654030 is a wasteful number, since it uses less digits than its factorization.

256535654030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332580.

The product of its (nonzero) digits is 1620000, while the sum is 44.

The spelling of 256535654030 in words is "two hundred fifty-six billion, five hundred thirty-five million, six hundred fifty-four thousand, thirty".