2665032139 has 48 divisors (see below), whose sum is σ = 3446296000. Its totient is φ = 2058376320.

The previous prime is 2665032137. The next prime is 2665032173. The reversal of 2665032139 is 9312305662.

It is not a de Polignac number, because 2665032139 - 2¹ = 2665032137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2665032098 and 2665032107.

It is not an unprimeable number, because it can be changed into a prime (2665032137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6515767 + ... + 6516175.

Almost surely, 2^2665032139 is an apocalyptic number.

2665032139 is a deficient number, since it is larger than the sum of its proper divisors (781263861).

2665032139 is a wasteful number, since it uses less digits than its factorization.

2665032139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 2665032139 is about 51623.9492774429. The cubic root of 2665032139 is about 1386.4391612463.

The spelling of 2665032139 in words is "two billion, six hundred sixty-five million, thirty-two thousand, one hundred thirty-nine".