61623130064 has 20 divisors (see below), whose sum is σ = 122171439456. Its totient is φ = 30095016672.

The previous prime is 61623130001. The next prime is 61623130073. The reversal of 61623130064 is 46003132616.

It is a self number, because there is not a number n which added to its sum of digits gives 61623130064.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 44783564 + ... + 44784939.

Almost surely, 2^61623130064 is an apocalyptic number.

It is an amenable number.

61623130064 is a deficient number, since it is larger than the sum of its proper divisors (60548309392).

61623130064 is a wasteful number, since it uses less digits than its factorization.

61623130064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89568554 (or 89568548 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 61623130064 in words is "sixty-one billion, six hundred twenty-three million, one hundred thirty thousand, sixty-four".