101206665361 has 4 divisors (see below), whose sum is σ = 102632111424. Its totient is φ = 99781219300.

The previous prime is 101206665359. The next prime is 101206665467. The reversal of 101206665361 is 163566602101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101206665361 - 2¹ = 101206665359 is a prime.

It is a super-2 number, since 2×101206665361² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101206665361.

It is not an unprimeable number, because it can be changed into a prime (101206665311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712722925 + ... + 712723066.

It is an arithmetic number, because the mean of its divisors is an integer number (25658027856).

Almost surely, 2^101206665361 is an apocalyptic number.

It is an amenable number.

101206665361 is a deficient number, since it is larger than the sum of its proper divisors (1425446063).

101206665361 is an equidigital number, since it uses as much as digits as its factorization.

101206665361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425446062.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 101206665361 in words is "one hundred one billion, two hundred six million, six hundred sixty-five thousand, three hundred sixty-one".