961551064 has 16 divisors (see below), whose sum is σ = 1881295920. Its totient is φ = 459872160.

The previous prime is 961551047. The next prime is 961551119. The reversal of 961551064 is 460155169.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2612727 + ... + 2613094.

It is an arithmetic number, because the mean of its divisors is an integer number (117580995).

Almost surely, 2^961551064 is an apocalyptic number.

It is an amenable number.

961551064 is a deficient number, since it is larger than the sum of its proper divisors (919744856).

961551064 is a wasteful number, since it uses less digits than its factorization.

961551064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225850 (or 5225846 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 961551064 is about 31008.8868552226. The cubic root of 961551064 is about 987.0158289640.

The spelling of 961551064 in words is "nine hundred sixty-one million, five hundred fifty-one thousand, sixty-four".