961240000159 has 4 divisors (see below), whose sum is σ = 981691915104. Its totient is φ = 940788085216.

The previous prime is 961240000141. The next prime is 961240000177. The reversal of 961240000159 is 951000042169.

961240000159 = T₈₀₀₅₁₅ + T₈₀₀₅₁₆ + T₈₀₀₅₁₇.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 951000042169 = 2293 ⋅414740533.

It is an interprime number because it is at equal distance from previous prime (961240000141) and next prime (961240000177).

It is a cyclic number.

It is not a de Polignac number, because 961240000159 - 2²¹ = 961237903007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961240000759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10225957402 + ... + 10225957495.

It is an arithmetic number, because the mean of its divisors is an integer number (245422978776).

Almost surely, 2^961240000159 is an apocalyptic number.

961240000159 is the 800517-th centered triangular number.

961240000159 is a deficient number, since it is larger than the sum of its proper divisors (20451914945).

961240000159 is a wasteful number, since it uses less digits than its factorization.

961240000159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20451914944.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 961240000159 in words is "nine hundred sixty-one billion, two hundred forty million, one hundred fifty-nine", and thus it is an aban number.