201454465121 has 16 divisors (see below), whose sum is σ = 249377178624. Its totient is φ = 158471187264.

The previous prime is 201454465109. The next prime is 201454465129. The reversal of 201454465121 is 121564454102.

It is a de Polignac number, because none of the positive numbers 2^k-201454465121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201454465129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6382481 + ... + 6413966.

It is an arithmetic number, because the mean of its divisors is an integer number (15586073664).

Almost surely, 2^201454465121 is an apocalyptic number.

It is an amenable number.

201454465121 is a deficient number, since it is larger than the sum of its proper divisors (47922713503).

201454465121 is a wasteful number, since it uses less digits than its factorization.

201454465121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12796640.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 201454465121 in words is "two hundred one billion, four hundred fifty-four million, four hundred sixty-five thousand, one hundred twenty-one".