159890432155 has 8 divisors (see below), whose sum is σ = 192862657152. Its totient is φ = 127249586688.

The previous prime is 159890432153. The next prime is 159890432161. The reversal of 159890432155 is 551234098951.

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

It is a cyclic number.

It is not a de Polignac number, because 159890432155 - 2¹ = 159890432153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159890432153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82843819 + ... + 82845748.

It is an arithmetic number, because the mean of its divisors is an integer number (24107832144).

Almost surely, 2^159890432155 is an apocalyptic number.

159890432155 is a deficient number, since it is larger than the sum of its proper divisors (32972224997).

159890432155 is a wasteful number, since it uses less digits than its factorization.

159890432155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165689765.

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 159890432155 in words is "one hundred fifty-nine billion, eight hundred ninety million, four hundred thirty-two thousand, one hundred fifty-five".