2077123665 has 16 divisors (see below), whose sum is σ = 3518892288. Its totient is φ = 1042634496.

The previous prime is 2077123651. The next prime is 2077123679. The reversal of 2077123665 is 5663217702.

It is an interprime number because it is at equal distance from previous prime (2077123651) and next prime (2077123679).

It is not a de Polignac number, because 2077123665 - 2¹¹ = 2077121617 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4072537 + ... + 4073046.

It is an arithmetic number, because the mean of its divisors is an integer number (219930768).

Almost surely, 2^2077123665 is an apocalyptic number.

It is an amenable number.

2077123665 is a deficient number, since it is larger than the sum of its proper divisors (1441768623).

2077123665 is a wasteful number, since it uses less digits than its factorization.

2077123665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8145608.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 2077123665 is about 45575.4721862539. The cubic root of 2077123665 is about 1275.9121838344.

The spelling of 2077123665 in words is "two billion, seventy-seven million, one hundred twenty-three thousand, six hundred sixty-five".