201551014450 has 24 divisors (see below), whose sum is σ = 374913504000. Its totient is φ = 80614251600.

The previous prime is 201551014403. The next prime is 201551014477. The reversal of 201551014450 is 54410155102.

201551014450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201551014450² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 538551 + ... + 832549.

It is an arithmetic number, because the mean of its divisors is an integer number (15621396000).

Almost surely, 2^201551014450 is an apocalyptic number.

201551014450 is a deficient number, since it is larger than the sum of its proper divisors (173362489550).

201551014450 is a wasteful number, since it uses less digits than its factorization.

201551014450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307722 (or 307717 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 201551014450 its reverse (54410155102), we get a palindrome (255961169552).

The spelling of 201551014450 in words is "two hundred one billion, five hundred fifty-one million, fourteen thousand, four hundred fifty".