62206216661 has 4 divisors (see below), whose sum is σ = 62261316300. Its totient is φ = 62151117024.

The previous prime is 62206216613. The next prime is 62206216669. The reversal of 62206216661 is 16661260226.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25822561636 + 36383655025 = 160694^2 + 190745^2 .

It is a cyclic number.

It is not a de Polignac number, because 62206216661 - 2²² = 62202022357 is a prime.

It is a super-2 number, since 2×62206216661² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62206216669) 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, 27548126 + ... + 27550383.

It is an arithmetic number, because the mean of its divisors is an integer number (15565329075).

Almost surely, 2^62206216661 is an apocalyptic number.

It is an amenable number.

62206216661 is a deficient number, since it is larger than the sum of its proper divisors (55099639).

62206216661 is a wasteful number, since it uses less digits than its factorization.

62206216661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55099638.

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 62206216661 its reverse (16661260226), we get a palindrome (78867476887).

The spelling of 62206216661 in words is "sixty-two billion, two hundred six million, two hundred sixteen thousand, six hundred sixty-one".