256201500516 has 48 divisors (see below), whose sum is σ = 645282263808. Its totient is φ = 78648307200.

The previous prime is 256201500497. The next prime is 256201500547. The reversal of 256201500516 is 615005102652.

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, 1838005 + ... + 1972476.

It is an arithmetic number, because the mean of its divisors is an integer number (13443380496).

Almost surely, 2^256201500516 is an apocalyptic number.

256201500516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

256201500516 is an abundant number, since it is smaller than the sum of its proper divisors (389080763292).

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

256201500516 is a wasteful number, since it uses less digits than its factorization.

256201500516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810932 (or 3810930 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 256201500516 in words is "two hundred fifty-six billion, two hundred one million, five hundred thousand, five hundred sixteen".