16730655457 has 4 divisors (see below), whose sum is σ = 16731859716. Its totient is φ = 16729451200.

The previous prime is 16730655427. The next prime is 16730655467. The reversal of 16730655457 is 75455603761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75455603761 = 53 ⋅1423690637.

It can be written as a sum of positive squares in 2 ways, for example, as 426174736 + 16304480721 = 20644^2 + 127689^2 .

It is a cyclic number.

It is not a de Polignac number, because 16730655457 - 2¹⁹ = 16730131169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16730655457.

It is not an unprimeable number, because it can be changed into a prime (16730655407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581044 + ... + 609157.

It is an arithmetic number, because the mean of its divisors is an integer number (4182964929).

Almost surely, 2^16730655457 is an apocalyptic number.

It is an amenable number.

16730655457 is a deficient number, since it is larger than the sum of its proper divisors (1204259).

16730655457 is a wasteful number, since it uses less digits than its factorization.

16730655457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204258.

The product of its (nonzero) digits is 2646000, while the sum is 49.

The spelling of 16730655457 in words is "sixteen billion, seven hundred thirty million, six hundred fifty-five thousand, four hundred fifty-seven".