61064766 has 40 divisors (see below), whose sum is σ = 156380400. Its totient is φ = 17446752.

The previous prime is 61064741. The next prime is 61064767. The reversal of 61064766 is 66746016.

61064766 is a `hidden beast` number, since 6 + 1 + 0 + 647 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61064766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61064767) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25791 + ... + 28058.

It is an arithmetic number, because the mean of its divisors is an integer number (3909510).

Almost surely, 2^61064766 is an apocalyptic number.

61064766 is an abundant number, since it is smaller than the sum of its proper divisors (95315634).

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

61064766 is a wasteful number, since it uses less digits than its factorization.

61064766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53870 (or 53861 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 61064766 is about 7814.3947942243. The cubic root of 61064766 is about 393.7889866159.

The spelling of 61064766 in words is "sixty-one million, sixty-four thousand, seven hundred sixty-six".