61461829165 has 16 divisors (see below), whose sum is σ = 80475659136. Its totient is φ = 44690324800.

The previous prime is 61461829159. The next prime is 61461829193. The reversal of 61461829165 is 56192816416.

It is a happy number.

It is not a de Polignac number, because 61461829165 - 2¹⁵ = 61461796397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161160 + ... + 385870.

It is an arithmetic number, because the mean of its divisors is an integer number (5029728696).

Almost surely, 2^61461829165 is an apocalyptic number.

It is an amenable number.

61461829165 is a deficient number, since it is larger than the sum of its proper divisors (19013829971).

61461829165 is a wasteful number, since it uses less digits than its factorization.

61461829165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229700.

The product of its digits is 622080, while the sum is 49.

The spelling of 61461829165 in words is "sixty-one billion, four hundred sixty-one million, eight hundred twenty-nine thousand, one hundred sixty-five".