4121660139 has 32 divisors (see below), whose sum is σ = 5892480000. Its totient is φ = 2554882560.

The previous prime is 4121660113. The next prime is 4121660141. The reversal of 4121660139 is 9310661214.

It is not a de Polignac number, because 4121660139 - 2⁵ = 4121660107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4121660189) 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, 2060862 + ... + 2062860.

It is an arithmetic number, because the mean of its divisors is an integer number (184140000).

Almost surely, 2^4121660139 is an apocalyptic number.

4121660139 is a deficient number, since it is larger than the sum of its proper divisors (1770819861).

4121660139 is a wasteful number, since it uses less digits than its factorization.

4121660139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 4121660139 is about 64200.1568456028. The cubic root of 4121660139 is about 1603.3342110041.

The spelling of 4121660139 in words is "four billion, one hundred twenty-one million, six hundred sixty thousand, one hundred thirty-nine".