2646165642 has 16 divisors (see below), whose sum is σ = 5463052032. Its totient is φ = 853601760.

The previous prime is 2646165637. The next prime is 2646165647. The reversal of 2646165642 is 2465616462.

It is an interprime number because it is at equal distance from previous prime (2646165637) and next prime (2646165647).

It is a junction number, because it is equal to n+sod(n) for n = 2646165594 and 2646165603.

It is not an unprimeable number, because it can be changed into a prime (2646165647) 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, 7113163 + ... + 7113534.

It is an arithmetic number, because the mean of its divisors is an integer number (341440752).

Almost surely, 2^2646165642 is an apocalyptic number.

2646165642 is an abundant number, since it is smaller than the sum of its proper divisors (2816886390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2646165642 is a wasteful number, since it uses less digits than its factorization.

2646165642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14226733.

The product of its digits is 414720, while the sum is 42.

The square root of 2646165642 is about 51440.8946461859. The cubic root of 2646165642 is about 1383.1597487647.

The spelling of 2646165642 in words is "two billion, six hundred forty-six million, one hundred sixty-five thousand, six hundred forty-two".