961199766 has 24 divisors (see below), whose sum is σ = 2086320600. Its totient is φ = 319827456.

The previous prime is 961199761. The next prime is 961199803. The reversal of 961199766 is 667991169.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961199761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37291 + ... + 57558.

It is an arithmetic number, because the mean of its divisors is an integer number (86930025).

Almost surely, 2^961199766 is an apocalyptic number.

961199766 is an abundant number, since it is smaller than the sum of its proper divisors (1125120834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961199766 is a wasteful number, since it uses less digits than its factorization.

961199766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95420 (or 95417 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The square root of 961199766 is about 31003.2218648320. The cubic root of 961199766 is about 986.8956138468.

The spelling of 961199766 in words is "nine hundred sixty-one million, one hundred ninety-nine thousand, seven hundred sixty-six".