331776656073 has 16 divisors (see below), whose sum is σ = 517390497600. Its totient is φ = 209543150880.

The previous prime is 331776656051. The next prime is 331776656119. The reversal of 331776656073 is 370656677133.

331776656073 is a `hidden beast` number, since 3 + 3 + 1 + 7 + 7 + 6 + 6 + 560 + 73 = 666.

It is not a de Polignac number, because 331776656073 - 2¹² = 331776651977 is a prime.

It is a super-2 number, since 2×331776656073² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331776656033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323368548 + ... + 323369573.

It is an arithmetic number, because the mean of its divisors is an integer number (32336906100).

Almost surely, 2^331776656073 is an apocalyptic number.

It is an amenable number.

331776656073 is a deficient number, since it is larger than the sum of its proper divisors (185613841527).

331776656073 is a wasteful number, since it uses less digits than its factorization.

331776656073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646738149 (or 646738143 counting only the distinct ones).

The product of its (nonzero) digits is 10001880, while the sum is 54.

The spelling of 331776656073 in words is "three hundred thirty-one billion, seven hundred seventy-six million, six hundred fifty-six thousand, seventy-three".