2061115161 has 32 divisors (see below), whose sum is σ = 3197362176. Its totient is φ = 1156680000.

The previous prime is 2061115159. The next prime is 2061115163. The reversal of 2061115161 is 1615111602.

It is an interprime number because it is at equal distance from previous prime (2061115159) and next prime (2061115163).

It is not a de Polignac number, because 2061115161 - 2¹ = 2061115159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061115163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401511 + ... + 406611.

It is an arithmetic number, because the mean of its divisors is an integer number (99917568).

Almost surely, 2^2061115161 is an apocalyptic number.

2061115161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2061115161 is a deficient number, since it is larger than the sum of its proper divisors (1136247015).

2061115161 is a wasteful number, since it uses less digits than its factorization.

2061115161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 2061115161 is about 45399.5061757284. The cubic root of 2061115161 is about 1272.6258854441.

Adding to 2061115161 its reverse (1615111602), we get a palindrome (3676226763).

The spelling of 2061115161 in words is "two billion, sixty-one million, one hundred fifteen thousand, one hundred sixty-one".