2106830061 has 64 divisors (see below), whose sum is σ = 3823104000. Its totient is φ = 1120350528.

The previous prime is 2106830057. The next prime is 2106830071. The reversal of 2106830061 is 1600386012.

It is not a de Polignac number, because 2106830061 - 2² = 2106830057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106830071) 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, 154290 + ... + 167388.

It is an arithmetic number, because the mean of its divisors is an integer number (59736000).

Almost surely, 2^2106830061 is an apocalyptic number.

2106830061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2106830061 is a deficient number, since it is larger than the sum of its proper divisors (1716273939).

2106830061 is a wasteful number, since it uses less digits than its factorization.

2106830061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13175 (or 13169 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2106830061 is about 45900.2185288916. The cubic root of 2106830061 is about 1281.9659853969.

The spelling of 2106830061 in words is "two billion, one hundred six million, eight hundred thirty thousand, sixty-one".