159344151561 has 32 divisors (see below), whose sum is σ = 276369273600. Its totient is φ = 88832972160.

The previous prime is 159344151553. The next prime is 159344151563. The reversal of 159344151561 is 165151443951.

159344151561 is a `hidden beast` number, since 1 + 5 + 9 + 34 + 4 + 1 + 51 + 561 = 666.

It is not a de Polignac number, because 159344151561 - 2³ = 159344151553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159344151563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10273846 + ... + 10289343.

It is an arithmetic number, because the mean of its divisors is an integer number (8636539800).

Almost surely, 2^159344151561 is an apocalyptic number.

It is an amenable number.

159344151561 is a deficient number, since it is larger than the sum of its proper divisors (117025122039).

159344151561 is a wasteful number, since it uses less digits than its factorization.

159344151561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20563246 (or 20563240 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The spelling of 159344151561 in words is "one hundred fifty-nine billion, three hundred forty-four million, one hundred fifty-one thousand, five hundred sixty-one".