16461102454521 has 16 divisors (see below), whose sum is σ = 22764510982848. Its totient is φ = 10571754312000.

The previous prime is 16461102454513. The next prime is 16461102454523. The reversal of 16461102454521 is 12545420116461.

It is not a de Polignac number, because 16461102454521 - 2³ = 16461102454513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16461102454523) 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, 734138395 + ... + 734160816.

It is an arithmetic number, because the mean of its divisors is an integer number (1422781936428).

Almost surely, 2^{16461102454521} is an apocalyptic number.

It is an amenable number.

16461102454521 is a deficient number, since it is larger than the sum of its proper divisors (6303408528327).

16461102454521 is a wasteful number, since it uses less digits than its factorization.

16461102454521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468299352.

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 16461102454521 in words is "sixteen trillion, four hundred sixty-one billion, one hundred two million, four hundred fifty-four thousand, five hundred twenty-one".