61693288016 has 20 divisors (see below), whose sum is σ = 119768396832. Its totient is φ = 30785314656.

The previous prime is 61693287959. The next prime is 61693288049. The reversal of 61693288016 is 61088239616.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824786 + ... + 3840881.

Almost surely, 2^61693288016 is an apocalyptic number.

It is an amenable number.

61693288016 is a deficient number, since it is larger than the sum of its proper divisors (58075108816).

61693288016 is a wasteful number, since it uses less digits than its factorization.

61693288016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7666178 (or 7666172 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 61693288016 in words is "sixty-one billion, six hundred ninety-three million, two hundred eighty-eight thousand, sixteen".