20065435320 has 96 divisors (see below), whose sum is σ = 70024294800. Its totient is φ = 4586383872.

The previous prime is 20065435309. The next prime is 20065435337. The reversal of 20065435320 is 2353456002.

It is a super-2 number, since 2×20065435320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 1700365 + ... + 1712124.

Almost surely, 2^20065435320 is an apocalyptic number.

20065435320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20065435320 is an abundant number, since it is smaller than the sum of its proper divisors (49958859480).

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

20065435320 is a wasteful number, since it uses less digits than its factorization.

20065435320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412517 (or 3412506 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 20065435320 in words is "twenty billion, sixty-five million, four hundred thirty-five thousand, three hundred twenty".