2640007162 has 8 divisors (see below), whose sum is σ = 4264626996. Its totient is φ = 1218464832.

The previous prime is 2640007121. The next prime is 2640007177. The reversal of 2640007162 is 2617000462.

It is a Cunningham number, because it is equal to 51381²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 2640007161 + 1 = 51381^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2640007162² = 13939275630822588488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2640007162.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50769343 + ... + 50769394.

Almost surely, 2^2640007162 is an apocalyptic number.

2640007162 is a deficient number, since it is larger than the sum of its proper divisors (1624619834).

2640007162 is a wasteful number, since it uses less digits than its factorization.

2640007162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101538752.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2640007162 is about 51381.0000097312. Note that the first 5 decimals coincide. The cubic root of 2640007162 is about 1382.0858958105.

The spelling of 2640007162 in words is "two billion, six hundred forty million, seven thousand, one hundred sixty-two".