20145445350 has 48 divisors (see below), whose sum is σ = 49977658368. Its totient is φ = 5370295840.

The previous prime is 20145445339. The next prime is 20145445373. The reversal of 20145445350 is 5354454102.

It is a Curzon number.

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, 453847 + ... + 496253.

It is an arithmetic number, because the mean of its divisors is an integer number (1041201216).

Almost surely, 2^20145445350 is an apocalyptic number.

20145445350 is an abundant number, since it is smaller than the sum of its proper divisors (29832213018).

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

20145445350 is a wasteful number, since it uses less digits than its factorization.

20145445350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45589 (or 45584 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 20145445350 its reverse (5354454102), we get a palindrome (25499899452).

The spelling of 20145445350 in words is "twenty billion, one hundred forty-five million, four hundred forty-five thousand, three hundred fifty".