65571036020 has 48 divisors (see below), whose sum is σ = 157386432000. Its totient is φ = 22479220224.

The previous prime is 65571036019. The next prime is 65571036029. The reversal of 65571036020 is 2063017556.

It is a super-2 number, since 2×65571036020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65571036029) 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 15 ways as a sum of consecutive naturals, for example, 1943132 + ... + 1976588.

It is an arithmetic number, because the mean of its divisors is an integer number (3278884000).

Almost surely, 2^65571036020 is an apocalyptic number.

It is an amenable number.

65571036020 is an abundant number, since it is smaller than the sum of its proper divisors (91815395980).

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

65571036020 is a wasteful number, since it uses less digits than its factorization.

65571036020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47472 (or 47470 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 65571036020 in words is "sixty-five billion, five hundred seventy-one million, thirty-six thousand, twenty".