16577244011401 has 2 divisors, whose sum is σ = 16577244011402. Its totient is φ = 16577244011400.

The previous prime is 16577244011399. The next prime is 16577244011453. The reversal of 16577244011401 is 10411044277561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12250532005776 + 4326712005625 = 3500076^2 + 2080075^2 .

It is a cyclic number.

It is not a de Polignac number, because 16577244011401 - 2¹ = 16577244011399 is a prime.

Together with 16577244011399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16577244011701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8288622005700 + 8288622005701.

It is an arithmetic number, because the mean of its divisors is an integer number (8288622005701).

Almost surely, 2^{16577244011401} is an apocalyptic number.

It is an amenable number.

16577244011401 is a deficient number, since it is larger than the sum of its proper divisors (1).

16577244011401 is an equidigital number, since it uses as much as digits as its factorization.

16577244011401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 43.

Adding to 16577244011401 its reverse (10411044277561), we get a palindrome (26988288288962).

The spelling of 16577244011401 in words is "sixteen trillion, five hundred seventy-seven billion, two hundred forty-four million, eleven thousand, four hundred one".