2106020061 has 64 divisors (see below), whose sum is σ = 3428720640. Its totient is φ = 1271842560.

The previous prime is 2106020041. The next prime is 2106020069. The reversal of 2106020061 is 1600206012.

It is a happy number.

2106020061 is a `hidden beast` number, since 2 + 1 + 0 + 602 + 0 + 0 + 61 = 666.

It is not a de Polignac number, because 2106020061 - 2¹⁴ = 2106003677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106020069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4026546 + ... + 4027068.

It is an arithmetic number, because the mean of its divisors is an integer number (53573760).

Almost surely, 2^2106020061 is an apocalyptic number.

It is an amenable number.

2106020061 is a deficient number, since it is larger than the sum of its proper divisors (1322700579).

2106020061 is a wasteful number, since it uses less digits than its factorization.

2106020061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 857 counting only the distinct ones).

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

The square root of 2106020061 is about 45891.3941932472. The cubic root of 2106020061 is about 1281.8016744777.

Adding to 2106020061 its reverse (1600206012), we get a palindrome (3706226073).

The spelling of 2106020061 in words is "two billion, one hundred six million, twenty thousand, sixty-one".