20346514444145 has 16 divisors (see below), whose sum is σ = 24984403574592. Its totient is φ = 15898177592640.

The previous prime is 20346514444117. The next prime is 20346514444153. The reversal of 20346514444145 is 54144441564302.

It is not a de Polignac number, because 20346514444145 - 2¹⁰ = 20346514443121 is a prime.

It is a super-2 number, since 2×20346514444145² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20346514444145.

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, 5540150 + ... + 8449040.

It is an arithmetic number, because the mean of its divisors is an integer number (1561525223412).

Almost surely, 2^{20346514444145} is an apocalyptic number.

It is an amenable number.

20346514444145 is a deficient number, since it is larger than the sum of its proper divisors (4637889130447).

20346514444145 is a wasteful number, since it uses less digits than its factorization.

20346514444145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941472.

The product of its (nonzero) digits is 3686400, while the sum is 47.

The spelling of 20346514444145 in words is "twenty trillion, three hundred forty-six billion, five hundred fourteen million, four hundred forty-four thousand, one hundred forty-five".