20162061 has 8 divisors (see below), whose sum is σ = 29869760. Its totient is φ = 13441356.

The previous prime is 20162041. The next prime is 20162063. The reversal of 20162061 is 16026102.

It is a happy number.

It is not a de Polignac number, because 20162061 - 2⁵ = 20162029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20162063) 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, 373345 + ... + 373398.

It is an arithmetic number, because the mean of its divisors is an integer number (3733720).

Almost surely, 2^20162061 is an apocalyptic number.

It is an amenable number.

20162061 is a deficient number, since it is larger than the sum of its proper divisors (9707699).

20162061 is an equidigital number, since it uses as much as digits as its factorization.

20162061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746752 (or 746746 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20162061 is about 4490.2183688547. The cubic root of 20162061 is about 272.1729589477.

Adding to 20162061 its reverse (16026102), we get a palindrome (36188163).

The spelling of 20162061 in words is "twenty million, one hundred sixty-two thousand, sixty-one".