238328646466 has 16 divisors (see below), whose sum is σ = 365867523648. Its totient is φ = 116373726000.

The previous prime is 238328646463. The next prime is 238328646547. The reversal of 238328646466 is 664646823832.

It is a super-2 number, since 2×238328646466² (a number of 24 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 238328646466.

It is not an unprimeable number, because it can be changed into a prime (238328646461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297571 + ... + 751801.

It is an arithmetic number, because the mean of its divisors is an integer number (22866720228).

Almost surely, 2^238328646466 is an apocalyptic number.

238328646466 is a deficient number, since it is larger than the sum of its proper divisors (127538877182).

238328646466 is a wasteful number, since it uses less digits than its factorization.

238328646466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460377.

The product of its digits is 47775744, while the sum is 58.

The spelling of 238328646466 in words is "two hundred thirty-eight billion, three hundred twenty-eight million, six hundred forty-six thousand, four hundred sixty-six".