61020045163 has 32 divisors (see below), whose sum is σ = 77080273920. Its totient is φ = 46924080000.

The previous prime is 61020045139. The next prime is 61020045179. The reversal of 61020045163 is 36154002016.

It is not a de Polignac number, because 61020045163 - 2¹³ = 61020036971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61020045113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2406033 + ... + 2431261.

It is an arithmetic number, because the mean of its divisors is an integer number (2408758560).

Almost surely, 2^61020045163 is an apocalyptic number.

61020045163 is a deficient number, since it is larger than the sum of its proper divisors (16060228757).

61020045163 is a wasteful number, since it uses less digits than its factorization.

61020045163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25659.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 61020045163 its reverse (36154002016), we get a palindrome (97174047179).

The spelling of 61020045163 in words is "sixty-one billion, twenty million, forty-five thousand, one hundred sixty-three".