331097321409644 has 12 divisors (see below), whose sum is σ = 579422846533104. Its totient is φ = 165547936685904.

The previous prime is 331097321409641. The next prime is 331097321409677. The reversal of 331097321409644 is 446904123790133.

It is a super-2 number, since 2×331097321409644² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331097321409644.

It is not an unprimeable number, because it can be changed into a prime (331097321409641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179975144 + ... + 181805519.

It is an arithmetic number, because the mean of its divisors is an integer number (48285237211092).

Almost surely, 2^{331097321409644} is an apocalyptic number.

It is an amenable number.

331097321409644 is a deficient number, since it is larger than the sum of its proper divisors (248325525123460).

331097321409644 is a wasteful number, since it uses less digits than its factorization.

331097321409644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362009464 (or 362009462 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 331097321409644 in words is "three hundred thirty-one trillion, ninety-seven billion, three hundred twenty-one million, four hundred nine thousand, six hundred forty-four".