961655570071 has 48 divisors (see below), whose sum is σ = 1207999513440. Its totient is φ = 761646654720.

The previous prime is 961655570017. The next prime is 961655570111. The reversal of 961655570071 is 170075556169.

It is not a de Polignac number, because 961655570071 - 2¹³ = 961655561879 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 (961655570371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3057276 + ... + 3357118.

It is an arithmetic number, because the mean of its divisors is an integer number (25166656530).

Almost surely, 2^961655570071 is an apocalyptic number.

961655570071 is a deficient number, since it is larger than the sum of its proper divisors (246343943369).

961655570071 is a wasteful number, since it uses less digits than its factorization.

961655570071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299984 (or 299977 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 52.

The spelling of 961655570071 in words is "nine hundred sixty-one billion, six hundred fifty-five million, five hundred seventy thousand, seventy-one".