61610551665067 has 8 divisors (see below), whose sum is σ = 61684514892000. Its totient is φ = 61536589701504.

The previous prime is 61610551664989. The next prime is 61610551665077. The reversal of 61610551665067 is 76056615501616.

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 61610551665067 - 2⁴³ = 52814458642859 is a prime.

It is a super-2 number, since 2×61610551665067² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61610551664999 and 61610551665017.

It is not an unprimeable number, because it can be changed into a prime (61610551665077) 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, 128965059 + ... + 129441907.

It is an arithmetic number, because the mean of its divisors is an integer number (7710564361500).

Almost surely, 2^{61610551665067} is an apocalyptic number.

61610551665067 is a deficient number, since it is larger than the sum of its proper divisors (73963226933).

61610551665067 is a wasteful number, since it uses less digits than its factorization.

61610551665067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631685.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 61610551665067 in words is "sixty-one trillion, six hundred ten billion, five hundred fifty-one million, six hundred sixty-five thousand, sixty-seven".