6634572101 has 2 divisors, whose sum is σ = 6634572102. Its totient is φ = 6634572100.

The previous prime is 6634572059. The next prime is 6634572127. The reversal of 6634572101 is 1012754366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6336319201 + 298252900 = 79601^2 + 17270^2 .

It is a cyclic number.

It is not a de Polignac number, because 6634572101 - 2⁶ = 6634572037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6634572151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3317286050 + 3317286051.

It is an arithmetic number, because the mean of its divisors is an integer number (3317286051).

Almost surely, 2^6634572101 is an apocalyptic number.

It is an amenable number.

6634572101 is a deficient number, since it is larger than the sum of its proper divisors (1).

6634572101 is an equidigital number, since it uses as much as digits as its factorization.

6634572101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 6634572101 is about 81452.8827052794. The cubic root of 6634572101 is about 1879.0469838722.

The spelling of 6634572101 in words is "six billion, six hundred thirty-four million, five hundred seventy-two thousand, one hundred one".