662743426005 has 80 divisors (see below), whose sum is σ = 1217928661488. Its totient is φ = 344580480000.

The previous prime is 662743425973. The next prime is 662743426039. The reversal of 662743426005 is 500624347266.

662743426005 is a `hidden beast` number, since 6 + 6 + 2 + 7 + 4 + 34 + 2 + 600 + 5 = 666.

662743426005 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 8 ways, for example, as 80676324 + 662662749681 = 8982^2 + 814041^2 .

It is not a de Polignac number, because 662743426005 - 2⁵ = 662743425973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 22917055 + ... + 22945955.

Almost surely, 2^662743426005 is an apocalyptic number.

It is an amenable number.

662743426005 is a deficient number, since it is larger than the sum of its proper divisors (555185235483).

662743426005 is a wasteful number, since it uses less digits than its factorization.

662743426005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30340 (or 30331 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 662743426005 in words is "six hundred sixty-two billion, seven hundred forty-three million, four hundred twenty-six thousand, five".