61006161 has 8 divisors (see below), whose sum is σ = 82675264. Its totient is φ = 40003920.

The previous prime is 61006159. The next prime is 61006181. The reversal of 61006161 is 16160016.

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

It is not a de Polignac number, because 61006161 - 2¹ = 61006159 is a prime.

It is a Duffinian number.

61006161 is a modest number, since divided by 6161 gives 6100 as remainder.

It is not an unprimeable number, because it can be changed into a prime (61006151) 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, 166501 + ... + 166866.

It is an arithmetic number, because the mean of its divisors is an integer number (10334408).

Almost surely, 2^61006161 is an apocalyptic number.

61006161 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

61006161 is a deficient number, since it is larger than the sum of its proper divisors (21669103).

61006161 is a wasteful number, since it uses less digits than its factorization.

61006161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333431.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 61006161 is about 7810.6440835567. The cubic root of 61006161 is about 393.6629707379.

Adding to 61006161 its reverse (16160016), we get a palindrome (77166177).

The spelling of 61006161 in words is "sixty-one million, six thousand, one hundred sixty-one".