61675000171665 has 16 divisors (see below), whose sum is σ = 98704541530176. Its totient is φ = 32885153006400.

The previous prime is 61675000171661. The next prime is 61675000171667. The reversal of 61675000171665 is 56617100057616.

It is not a de Polignac number, because 61675000171665 - 2² = 61675000171661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61675000171661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511213831 + ... + 511334460.

It is an arithmetic number, because the mean of its divisors is an integer number (6169033845636).

Almost surely, 2^{61675000171665} is an apocalyptic number.

It is an amenable number.

61675000171665 is a deficient number, since it is larger than the sum of its proper divisors (37029541358511).

61675000171665 is a wasteful number, since it uses less digits than its factorization.

61675000171665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022552320.

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 61675000171665 in words is "sixty-one trillion, six hundred seventy-five billion, one hundred seventy-one thousand, six hundred sixty-five".