101002162661 has 2 divisors, whose sum is σ = 101002162662. Its totient is φ = 101002162660.

The previous prime is 101002162627. The next prime is 101002162669. The reversal of 101002162661 is 166261200101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51626656225 + 49375506436 = 227215^2 + 222206^2 .

It is a cyclic number.

It is not a de Polignac number, because 101002162661 - 2²⁶ = 100935053797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101002162661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101002162669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50501081330 + 50501081331.

It is an arithmetic number, because the mean of its divisors is an integer number (50501081331).

Almost surely, 2^101002162661 is an apocalyptic number.

It is an amenable number.

101002162661 is a deficient number, since it is larger than the sum of its proper divisors (1).

101002162661 is an equidigital number, since it uses as much as digits as its factorization.

101002162661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 101002162661 its reverse (166261200101), we get a palindrome (267263362762).

The spelling of 101002162661 in words is "one hundred one billion, two million, one hundred sixty-two thousand, six hundred sixty-one".