330726125081 has 12 divisors (see below), whose sum is σ = 364876841700. Its totient is φ = 299542388640.

The previous prime is 330726125071. The next prime is 330726125087. The reversal of 330726125081 is 180521627033.

It can be written as a sum of positive squares in 2 ways, for example, as 14534713600 + 316191411481 = 120560^2 + 562309^2 .

It is not a de Polignac number, because 330726125081 - 2¹⁸ = 330725862937 is a prime.

It is a super-2 number, since 2×330726125081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (330726125087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5047886 + ... + 5112983.

It is an arithmetic number, because the mean of its divisors is an integer number (30406403475).

Almost surely, 2^330726125081 is an apocalyptic number.

It is an amenable number.

330726125081 is a deficient number, since it is larger than the sum of its proper divisors (34150716619).

330726125081 is a wasteful number, since it uses less digits than its factorization.

330726125081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10161160 (or 10161149 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 330726125081 in words is "three hundred thirty billion, seven hundred twenty-six million, one hundred twenty-five thousand, eighty-one".