61650537652 has 12 divisors (see below), whose sum is σ = 117696481056. Its totient is φ = 28022971640.

The previous prime is 61650537647. The next prime is 61650537659. The reversal of 61650537652 is 25673505616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61650537659) 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 3 ways as a sum of consecutive naturals, for example, 700574248 + ... + 700574335.

It is an arithmetic number, because the mean of its divisors is an integer number (9808040088).

Almost surely, 2^61650537652 is an apocalyptic number.

It is an amenable number.

61650537652 is a deficient number, since it is larger than the sum of its proper divisors (56045943404).

61650537652 is a wasteful number, since it uses less digits than its factorization.

61650537652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401148598 (or 1401148596 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 61650537652 in words is "sixty-one billion, six hundred fifty million, five hundred thirty-seven thousand, six hundred fifty-two".