159511155420 has 24 divisors (see below), whose sum is σ = 446631235344. Its totient is φ = 42536308096.

The previous prime is 159511155413. The next prime is 159511155451. The reversal of 159511155420 is 24551115951.

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, 1329259569 + ... + 1329259688.

It is an arithmetic number, because the mean of its divisors is an integer number (18609634806).

Almost surely, 2^159511155420 is an apocalyptic number.

159511155420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159511155420 is an abundant number, since it is smaller than the sum of its proper divisors (287120079924).

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

159511155420 is a wasteful number, since it uses less digits than its factorization.

159511155420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658519269 (or 2658519267 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 39.

The spelling of 159511155420 in words is "one hundred fifty-nine billion, five hundred eleven million, one hundred fifty-five thousand, four hundred twenty".