662731611412 has 24 divisors (see below), whose sum is σ = 1322464439016. Its totient is φ = 287883414528.

The previous prime is 662731611403. The next prime is 662731611427. The reversal of 662731611412 is 214116137266.

662731611412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23349062416 + 639382548996 = 152804^2 + 799614^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374847313 + ... + 374849080.

It is an arithmetic number, because the mean of its divisors is an integer number (55102684959).

Almost surely, 2^662731611412 is an apocalyptic number.

It is an amenable number.

662731611412 is a deficient number, since it is larger than the sum of its proper divisors (659732827604).

662731611412 is a wasteful number, since it uses less digits than its factorization.

662731611412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749696427 (or 749696425 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

Adding to 662731611412 its reverse (214116137266), we get a palindrome (876847748678).

The spelling of 662731611412 in words is "six hundred sixty-two billion, seven hundred thirty-one million, six hundred eleven thousand, four hundred twelve".