16547908401 has 6 divisors (see below), whose sum is σ = 23902534370. Its totient is φ = 11031938928.

The previous prime is 16547908373. The next prime is 16547908423. The reversal of 16547908401 is 10480974561.

16547908401 is a `hidden beast` number, since 16 + 547 + 90 + 8 + 4 + 0 + 1 = 666.

16547908401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9163084176 + 7384824225 = 95724^2 + 85935^2 .

It is not a de Polignac number, because 16547908401 - 2⁶ = 16547908337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16547908451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 919328236 + ... + 919328253.

Almost surely, 2^16547908401 is an apocalyptic number.

It is an amenable number.

16547908401 is a deficient number, since it is larger than the sum of its proper divisors (7354625969).

16547908401 is a wasteful number, since it uses less digits than its factorization.

16547908401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838656495 (or 1838656492 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 16547908401 in words is "sixteen billion, five hundred forty-seven million, nine hundred eight thousand, four hundred one".