662661062347 has 4 divisors (see below), whose sum is σ = 701641124856. Its totient is φ = 623680999840.

The previous prime is 662661062321. The next prime is 662661062359. The reversal of 662661062347 is 743260166266.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 662661062347 - 2¹⁵ = 662661029579 is a prime.

It is a super-2 number, since 2×662661062347² (a number of 24 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 662661062347.

It is not an unprimeable number, because it can be changed into a prime (662661062377) 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, 19490031229 + ... + 19490031262.

It is an arithmetic number, because the mean of its divisors is an integer number (175410281214).

Almost surely, 2^662661062347 is an apocalyptic number.

662661062347 is a deficient number, since it is larger than the sum of its proper divisors (38980062509).

662661062347 is a wasteful number, since it uses less digits than its factorization.

662661062347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38980062508.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 662661062347 in words is "six hundred sixty-two billion, six hundred sixty-one million, sixty-two thousand, three hundred forty-seven".