65554002001 has 2 divisors, whose sum is σ = 65554002002. Its totient is φ = 65554002000.

The previous prime is 65554001969. The next prime is 65554002029. The reversal of 65554002001 is 10020045556.

It is an a-pointer prime, because the next prime (65554002029) can be obtained adding 65554002001 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62487500625 + 3066501376 = 249975^2 + 55376^2 .

It is a cyclic number.

It is not a de Polignac number, because 65554002001 - 2⁵ = 65554001969 is a prime.

It is a super-2 number, since 2×65554002001² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65554002061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32777001000 + 32777001001.

It is an arithmetic number, because the mean of its divisors is an integer number (32777001001).

Almost surely, 2^65554002001 is an apocalyptic number.

It is an amenable number.

65554002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

65554002001 is an equidigital number, since it uses as much as digits as its factorization.

65554002001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 65554002001 its reverse (10020045556), we get a palindrome (75574047557).

The spelling of 65554002001 in words is "sixty-five billion, five hundred fifty-four million, two thousand, one".