256092170654 has 4 divisors (see below), whose sum is σ = 384138255984. Its totient is φ = 128046085326.

The previous prime is 256092170641. The next prime is 256092170657. The reversal of 256092170654 is 456071290652.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 256092170599 and 256092170608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256092170657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64023042662 + ... + 64023042665.

It is an arithmetic number, because the mean of its divisors is an integer number (96034563996).

Almost surely, 2^256092170654 is an apocalyptic number.

256092170654 is a deficient number, since it is larger than the sum of its proper divisors (128046085330).

256092170654 is a wasteful number, since it uses less digits than its factorization.

256092170654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128046085329.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 256092170654 in words is "two hundred fifty-six billion, ninety-two million, one hundred seventy thousand, six hundred fifty-four".