331226747542072 has 8 divisors (see below), whose sum is σ = 621050151641400. Its totient is φ = 165613373771032.

The previous prime is 331226747541979. The next prime is 331226747542073. The reversal of 331226747542072 is 270245747622133.

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

It is a super-2 number, since 2×331226747542072² (a number of 30 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331226747542073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20701671721372 + ... + 20701671721387.

It is an arithmetic number, because the mean of its divisors is an integer number (77631268955175).

Almost surely, 2^{331226747542072} is an apocalyptic number.

It is an amenable number.

331226747542072 is a deficient number, since it is larger than the sum of its proper divisors (289823404099328).

331226747542072 is a wasteful number, since it uses less digits than its factorization.

331226747542072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41403343442765 (or 41403343442761 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 55.

The spelling of 331226747542072 in words is "three hundred thirty-one trillion, two hundred twenty-six billion, seven hundred forty-seven million, five hundred forty-two thousand, seventy-two".