961559456601 has 8 divisors (see below), whose sum is σ = 1283013060480. Its totient is φ = 640572745232.

The previous prime is 961559456573. The next prime is 961559456657. The reversal of 961559456601 is 106654955169.

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 961559456601 - 2⁶ = 961559456537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (961559457601) 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, 116718321 + ... + 116726558.

It is an arithmetic number, because the mean of its divisors is an integer number (160376632560).

Almost surely, 2^961559456601 is an apocalyptic number.

It is an amenable number.

961559456601 is a deficient number, since it is larger than the sum of its proper divisors (321453603879).

961559456601 is a wasteful number, since it uses less digits than its factorization.

961559456601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233446255.

The product of its (nonzero) digits is 8748000, while the sum is 57.

The spelling of 961559456601 in words is "nine hundred sixty-one billion, five hundred fifty-nine million, four hundred fifty-six thousand, six hundred one".