961011566 has 16 divisors (see below), whose sum is σ = 1475754768. Its totient is φ = 469224000.

The previous prime is 961011559. The next prime is 961011589. The reversal of 961011566 is 665110169.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17840 + ... + 47331.

It is an arithmetic number, because the mean of its divisors is an integer number (92234673).

Almost surely, 2^961011566 is an apocalyptic number.

961011566 is a deficient number, since it is larger than the sum of its proper divisors (514743202).

961011566 is a wasteful number, since it uses less digits than its factorization.

961011566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65347.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 961011566 is about 31000.1865478258. The cubic root of 961011566 is about 986.8311992529.

The spelling of 961011566 in words is "nine hundred sixty-one million, eleven thousand, five hundred sixty-six".