16461127453551 has 16 divisors (see below), whose sum is σ = 24003167505408. Its totient is φ = 9951561968000.

The previous prime is 16461127453549. The next prime is 16461127453567. The reversal of 16461127453551 is 15535472116461.

It is a cyclic number.

It is not a de Polignac number, because 16461127453551 - 2¹ = 16461127453549 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16461127453494 and 16461127453503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16461127453501) 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, 621959391 + ... + 621985856.

It is an arithmetic number, because the mean of its divisors is an integer number (1500197969088).

Almost surely, 2^{16461127453551} is an apocalyptic number.

16461127453551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16461127453551 is a deficient number, since it is larger than the sum of its proper divisors (7542040051857).

16461127453551 is a wasteful number, since it uses less digits than its factorization.

16461127453551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243945662.

The product of its digits is 3024000, while the sum is 51.

The spelling of 16461127453551 in words is "sixteen trillion, four hundred sixty-one billion, one hundred twenty-seven million, four hundred fifty-three thousand, five hundred fifty-one".