1977606116 has 12 divisors (see below), whose sum is σ = 3462001788. Its totient is φ = 988462752.

The previous prime is 1977606109. The next prime is 1977606133. The reversal of 1977606116 is 6116067791.

It can be written as a sum of positive squares in 2 ways, for example, as 811110400 + 1166495716 = 28480^2 + 34154^2 .

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 3 ways as a sum of consecutive naturals, for example, 71771 + ... + 95426.

It is an arithmetic number, because the mean of its divisors is an integer number (288500149).

Almost surely, 2^1977606116 is an apocalyptic number.

It is an amenable number.

1977606116 is a deficient number, since it is larger than the sum of its proper divisors (1484395672).

1977606116 is a wasteful number, since it uses less digits than its factorization.

1977606116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170158 (or 170156 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 1977606116 is about 44470.2835160740. The cubic root of 1977606116 is about 1255.2009680123.

The spelling of 1977606116 in words is "one billion, nine hundred seventy-seven million, six hundred six thousand, one hundred sixteen".