61061650605 has 16 divisors (see below), whose sum is σ = 108554045760. Its totient is φ = 32566213584.

The previous prime is 61061650543. The next prime is 61061650619. The reversal of 61061650605 is 50605616016.

It is not a de Polignac number, because 61061650605 - 2⁷ = 61061650477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61061650605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226154127 + ... + 226154396.

It is an arithmetic number, because the mean of its divisors is an integer number (6784627860).

Almost surely, 2^61061650605 is an apocalyptic number.

It is an amenable number.

61061650605 is a deficient number, since it is larger than the sum of its proper divisors (47492395155).

61061650605 is a wasteful number, since it uses less digits than its factorization.

61061650605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452308537 (or 452308531 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 61061650605 in words is "sixty-one billion, sixty-one million, six hundred fifty thousand, six hundred five".