256145330635 has 8 divisors (see below), whose sum is σ = 307395827136. Its totient is φ = 204901977600.

The previous prime is 256145330627. The next prime is 256145330689. The reversal of 256145330635 is 536033541652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256145330635 - 2³ = 256145330627 is a prime.

It is a super-2 number, since 2×256145330635² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256145330591 and 256145330600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1706659 + ... + 1850668.

It is an arithmetic number, because the mean of its divisors is an integer number (38424478392).

Almost surely, 2^256145330635 is an apocalyptic number.

256145330635 is a deficient number, since it is larger than the sum of its proper divisors (51250496501).

256145330635 is a wasteful number, since it uses less digits than its factorization.

256145330635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571733.

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 256145330635 in words is "two hundred fifty-six billion, one hundred forty-five million, three hundred thirty thousand, six hundred thirty-five".