20200063765 has 16 divisors (see below), whose sum is σ = 29332530432. Its totient is φ = 13036679424.

The previous prime is 20200063759. The next prime is 20200063813. The reversal of 20200063765 is 56736000202.

It is a cyclic number.

It is not a de Polignac number, because 20200063765 - 2³ = 20200063757 is a prime.

It is a super-2 number, since 2×20200063765² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16974249 + ... + 16975438.

It is an arithmetic number, because the mean of its divisors is an integer number (1833283152).

Almost surely, 2^20200063765 is an apocalyptic number.

It is an amenable number.

20200063765 is a deficient number, since it is larger than the sum of its proper divisors (9132466667).

20200063765 is a wasteful number, since it uses less digits than its factorization.

20200063765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33949716.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 20200063765 its reverse (56736000202), we get a palindrome (76936063967).

The spelling of 20200063765 in words is "twenty billion, two hundred million, sixty-three thousand, seven hundred sixty-five".