1672420554011 has 2 divisors, whose sum is σ = 1672420554012. Its totient is φ = 1672420554010.

The previous prime is 1672420553989. The next prime is 1672420554043. The reversal of 1672420554011 is 1104550242761.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672420554011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1672420554811) 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 as a sum of consecutive naturals, namely, 836210277005 + 836210277006.

It is an arithmetic number, because the mean of its divisors is an integer number (836210277006).

Almost surely, 2^{1672420554011} is an apocalyptic number.

1672420554011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672420554011 is an equidigital number, since it uses as much as digits as its factorization.

1672420554011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

Adding to 1672420554011 its reverse (1104550242761), we get a palindrome (2776970796772).

The spelling of 1672420554011 in words is "one trillion, six hundred seventy-two billion, four hundred twenty million, five hundred fifty-four thousand, eleven".