61001605085 has 8 divisors (see below), whose sum is σ = 73289180160. Its totient is φ = 48743114704.

The previous prime is 61001605081. The next prime is 61001605099. The reversal of 61001605085 is 58050610016.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61001605085 - 2² = 61001605081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61001605081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7266557 + ... + 7274946.

It is an arithmetic number, because the mean of its divisors is an integer number (9161147520).

Almost surely, 2^61001605085 is an apocalyptic number.

It is an amenable number.

61001605085 is a deficient number, since it is larger than the sum of its proper divisors (12287575075).

61001605085 is a wasteful number, since it uses less digits than its factorization.

61001605085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14542347.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 61001605085 in words is "sixty-one billion, one million, six hundred five thousand, eighty-five".