65466538628 has 6 divisors (see below), whose sum is σ = 114566442606. Its totient is φ = 32733269312.

The previous prime is 65466538583. The next prime is 65466538663. The reversal of 65466538628 is 82683566456.

It can be written as a sum of positive squares in only one way, i.e., 54010689604 + 11455849024 = 232402^2 + 107032^2 .

It is a super-2 number, since 2×65466538628² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8183317325 + ... + 8183317332.

It is an arithmetic number, because the mean of its divisors is an integer number (19094407101).

Almost surely, 2^65466538628 is an apocalyptic number.

It is an amenable number.

65466538628 is a deficient number, since it is larger than the sum of its proper divisors (49099903978).

65466538628 is a wasteful number, since it uses less digits than its factorization.

65466538628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16366634661 (or 16366634659 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 59.

The spelling of 65466538628 in words is "sixty-five billion, four hundred sixty-six million, five hundred thirty-eight thousand, six hundred twenty-eight".