256300066516 has 24 divisors (see below), whose sum is σ = 491213953440. Its totient is φ = 116287382112.

The previous prime is 256300066493. The next prime is 256300066577. The reversal of 256300066516 is 615660003652.

It is a happy number.

It is a super-2 number, since 2×256300066516² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 41766826 + ... + 41772961.

It is an arithmetic number, because the mean of its divisors is an integer number (20467248060).

Almost surely, 2^256300066516 is an apocalyptic number.

256300066516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

256300066516 is a deficient number, since it is larger than the sum of its proper divisors (234913886924).

256300066516 is a wasteful number, since it uses less digits than its factorization.

256300066516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83539863 (or 83539861 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 256300066516 in words is "two hundred fifty-six billion, three hundred million, sixty-six thousand, five hundred sixteen".