65485817500 has 30 divisors (see below), whose sum is σ = 143204391176. Its totient is φ = 26194326000.

The previous prime is 65485817497. The next prime is 65485817503. The reversal of 65485817500 is 571858456.

It is an interprime number because it is at equal distance from previous prime (65485817497) and next prime (65485817503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65485817503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13094664 + ... + 13099663.

Almost surely, 2^65485817500 is an apocalyptic number.

It is an amenable number.

65485817500 is an abundant number, since it is smaller than the sum of its proper divisors (77718573676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65485817500 is a wasteful number, since it uses less digits than its factorization.

65485817500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26194351 (or 26194334 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 49.

The spelling of 65485817500 in words is "sixty-five billion, four hundred eighty-five million, eight hundred seventeen thousand, five hundred".