662112701661 has 4 divisors (see below), whose sum is σ = 882816935552. Its totient is φ = 441408467772.

The previous prime is 662112701647. The next prime is 662112701693. The reversal of 662112701661 is 166107211266.

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 not a de Polignac number, because 662112701661 - 2⁵ = 662112701629 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 (662112701611) 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, 110352116941 + ... + 110352116946.

It is an arithmetic number, because the mean of its divisors is an integer number (220704233888).

Almost surely, 2^662112701661 is an apocalyptic number.

It is an amenable number.

662112701661 is a deficient number, since it is larger than the sum of its proper divisors (220704233891).

662112701661 is a wasteful number, since it uses less digits than its factorization.

662112701661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220704233890.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 662112701661 in words is "six hundred sixty-two billion, one hundred twelve million, seven hundred one thousand, six hundred sixty-one".