62210161661 has 4 divisors (see below), whose sum is σ = 62210751900. Its totient is φ = 62209571424.

The previous prime is 62210161633. The next prime is 62210161687. The reversal of 62210161661 is 16616101226.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 41054459161 + 21155702500 = 202619^2 + 145450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-62210161661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62210161631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89066 + ... + 363803.

It is an arithmetic number, because the mean of its divisors is an integer number (15552687975).

Almost surely, 2^62210161661 is an apocalyptic number.

It is an amenable number.

62210161661 is a deficient number, since it is larger than the sum of its proper divisors (590239).

62210161661 is a wasteful number, since it uses less digits than its factorization.

62210161661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590238.

The product of its (nonzero) digits is 5184, while the sum is 32.

Adding to 62210161661 its reverse (16616101226), we get a palindrome (78826262887).

The spelling of 62210161661 in words is "sixty-two billion, two hundred ten million, one hundred sixty-one thousand, six hundred sixty-one".