159403756516 has 27 divisors (see below), whose sum is σ = 282251971561. Its totient is φ = 78771217184.

The previous prime is 159403756487. The next prime is 159403756531. The reversal of 159403756516 is 615657304951.

The square root of 159403756516 is 399254.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 30608902116 + 128794854400 = 174954^2 + 358880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 71066091 + ... + 71068333.

Almost surely, 2^159403756516 is an apocalyptic number.

159403756516 is the 399254-th square number.

It is an amenable number.

159403756516 is a deficient number, since it is larger than the sum of its proper divisors (122848215045).

159403756516 is an frugal number, since it uses more digits than its factorization.

159403756516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668 (or 2334 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 159403756516 in words is "one hundred fifty-nine billion, four hundred three million, seven hundred fifty-six thousand, five hundred sixteen".