331776656072 has 8 divisors (see below), whose sum is σ = 622081230150. Its totient is φ = 165888328032.

The previous prime is 331776656051. The next prime is 331776656119. The reversal of 331776656072 is 270656677133.

It can be written as a sum of positive squares in only one way, i.e., 314893811716 + 16882844356 = 561154^2 + 129934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×331776656072² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20736040997 + ... + 20736041012.

Almost surely, 2^331776656072 is an apocalyptic number.

It is an amenable number.

331776656072 is a deficient number, since it is larger than the sum of its proper divisors (290304574078).

331776656072 is a wasteful number, since it uses less digits than its factorization.

331776656072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41472082015 (or 41472082011 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 53.

The spelling of 331776656072 in words is "three hundred thirty-one billion, seven hundred seventy-six million, six hundred fifty-six thousand, seventy-two".