20010319559945 has 32 divisors (see below), whose sum is σ = 28213608044160. Its totient is φ = 13431951037440.

The previous prime is 20010319559933. The next prime is 20010319559947. The reversal of 20010319559945 is 54995591301002.

It is not a de Polignac number, because 20010319559945 - 2³⁸ = 19735441653001 is a prime.

It is a super-2 number, since 2×20010319559945² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20010319559947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4602182 + ... + 7823088.

It is an arithmetic number, because the mean of its divisors is an integer number (881675251380).

Almost surely, 2^{20010319559945} is an apocalyptic number.

It is an amenable number.

20010319559945 is a deficient number, since it is larger than the sum of its proper divisors (8203288484215).

20010319559945 is a wasteful number, since it uses less digits than its factorization.

20010319559945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229625.

The product of its (nonzero) digits is 2187000, while the sum is 53.

The spelling of 20010319559945 in words is "twenty trillion, ten billion, three hundred nineteen million, five hundred fifty-nine thousand, nine hundred forty-five".