61165650646 has 8 divisors (see below), whose sum is σ = 92694336840. Its totient is φ = 30267538368.

The previous prime is 61165650583. The next prime is 61165650673. The reversal of 61165650646 is 64605656116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61165650596 and 61165650605.

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, 157643236 + ... + 157643623.

It is an arithmetic number, because the mean of its divisors is an integer number (11586792105).

Almost surely, 2^61165650646 is an apocalyptic number.

61165650646 is a deficient number, since it is larger than the sum of its proper divisors (31528686194).

61165650646 is a wasteful number, since it uses less digits than its factorization.

61165650646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315286958.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 61165650646 in words is "sixty-one billion, one hundred sixty-five million, six hundred fifty thousand, six hundred forty-six".