16451435154401 has 16 divisors (see below), whose sum is σ = 18260394378240. Its totient is φ = 14724658327680.

The previous prime is 16451435154367. The next prime is 16451435154491. The reversal of 16451435154401 is 10445153415461.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16451435154401 - 2¹⁸ = 16451434892257 is a prime.

It is a super-2 number, since 2×16451435154401² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16451435154491) 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, 94593281 + ... + 94767038.

It is an arithmetic number, because the mean of its divisors is an integer number (1141274648640).

Almost surely, 2^{16451435154401} is an apocalyptic number.

It is an amenable number.

16451435154401 is a deficient number, since it is larger than the sum of its proper divisors (1808959223839).

16451435154401 is a wasteful number, since it uses less digits than its factorization.

16451435154401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189360536.

The product of its (nonzero) digits is 576000, while the sum is 44.

Adding to 16451435154401 its reverse (10445153415461), we get a palindrome (26896588569862).

The spelling of 16451435154401 in words is "sixteen trillion, four hundred fifty-one billion, four hundred thirty-five million, one hundred fifty-four thousand, four hundred one".