2161645004062 has 16 divisors (see below), whose sum is σ = 3492587722752. Its totient is φ = 1000480856760.

The previous prime is 2161645004047. The next prime is 2161645004147. The reversal of 2161645004062 is 2604005461612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757938618 + ... + 757941469.

It is an arithmetic number, because the mean of its divisors is an integer number (218286732672).

Almost surely, 2^{2161645004062} is an apocalyptic number.

2161645004062 is a deficient number, since it is larger than the sum of its proper divisors (1330942718690).

2161645004062 is a wasteful number, since it uses less digits than its factorization.

2161645004062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515880143.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 2161645004062 in words is "two trillion, one hundred sixty-one billion, six hundred forty-five million, four thousand, sixty-two".