61501056665116 has 12 divisors (see below), whose sum is σ = 107691412372488. Its totient is φ = 30732081701552.

The previous prime is 61501056665107. The next prime is 61501056665159. The reversal of 61501056665116 is 61156665010516.

It is a self number, because there is not a number n which added to its sum of digits gives 61501056665116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4611650251 + ... + 4611663586.

It is an arithmetic number, because the mean of its divisors is an integer number (8974284364374).

Almost surely, 2^{61501056665116} is an apocalyptic number.

It is an amenable number.

61501056665116 is a deficient number, since it is larger than the sum of its proper divisors (46190355707372).

61501056665116 is a wasteful number, since it uses less digits than its factorization.

61501056665116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9223315508 (or 9223315506 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 61501056665116 in words is "sixty-one trillion, five hundred one billion, fifty-six million, six hundred sixty-five thousand, one hundred sixteen".