65000100 has 72 divisors (see below), whose sum is σ = 205174368. Its totient is φ = 15756800.

The previous prime is 65000081. The next prime is 65000119. The reversal of 65000100 is 100056.

It is an interprime number because it is at equal distance from previous prime (65000081) and next prime (65000119).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6549 + ... + 13148.

It is an arithmetic number, because the mean of its divisors is an integer number (2849644).

Almost surely, 2^65000100 is an apocalyptic number.

65000100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65000100 is an abundant number, since it is smaller than the sum of its proper divisors (140174268).

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

65000100 is a wasteful number, since it uses less digits than its factorization.

65000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19725 (or 19718 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 65000100 is about 8062.2639500329. The cubic root of 65000100 is about 402.0727820499.

Adding to 65000100 its reverse (100056), we get a palindrome (65100156).

The spelling of 65000100 in words is "sixty-five million, one hundred", and thus it is an aban number.