201342621445144 has 16 divisors (see below), whose sum is σ = 389695396345920. Its totient is φ = 97423849086240.

The previous prime is 201342621445117. The next prime is 201342621445153. The reversal of 201342621445144 is 441544126243102.

It is a self number, because there is not a number n which added to its sum of digits gives 201342621445144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405932704279 + ... + 405932704774.

It is an arithmetic number, because the mean of its divisors is an integer number (24355962271620).

Almost surely, 2^{201342621445144} is an apocalyptic number.

It is an amenable number.

201342621445144 is a deficient number, since it is larger than the sum of its proper divisors (188352774900776).

201342621445144 is a wasteful number, since it uses less digits than its factorization.

201342621445144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811865409090 (or 811865409086 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 43.

Adding to 201342621445144 its reverse (441544126243102), we get a palindrome (642886747688246).

The spelling of 201342621445144 in words is "two hundred one trillion, three hundred forty-two billion, six hundred twenty-one million, four hundred forty-five thousand, one hundred forty-four".