2670721161650 has 24 divisors (see below), whose sum is σ = 4967606560644. Its totient is φ = 1068274443200.

The previous prime is 2670721161643. The next prime is 2670721161697. The reversal of 2670721161650 is 561611270762.

It can be written as a sum of positive squares in 6 ways, for example, as 346733723281 + 2323987438369 = 588841^2 + 1524463^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4042004 + ... + 4656096.

Almost surely, 2^{2670721161650} is an apocalyptic number.

2670721161650 is a deficient number, since it is larger than the sum of its proper divisors (2296885398994).

2670721161650 is a wasteful number, since it uses less digits than its factorization.

2670721161650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701086 (or 701081 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 2670721161650 in words is "two trillion, six hundred seventy billion, seven hundred twenty-one million, one hundred sixty-one thousand, six hundred fifty".