65852797500 has 300 divisors, whose sum is σ = 245858337648. Its totient is φ = 15051744000.

The previous prime is 65852797453. The next prime is 65852797511. The reversal of 65852797500 is 579725856.

65852797500 is a `hidden beast` number, since 6 + 585 + 2 + 7 + 9 + 7 + 50 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 99 ways as a sum of consecutive naturals, for example, 1394272 + ... + 1440728.

Almost surely, 2^65852797500 is an apocalyptic number.

65852797500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65852797500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122929168824).

65852797500 is an abundant number, since it is smaller than the sum of its proper divisors (180005540148).

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

65852797500 is a wasteful number, since it uses less digits than its factorization.

65852797500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46500 (or 46474 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 65852797500 in words is "sixty-five billion, eight hundred fifty-two million, seven hundred ninety-seven thousand, five hundred".