662543525061603 has 24 divisors (see below), whose sum is σ = 979265116397568. Its totient is φ = 431422889636592.

The previous prime is 662543525061599. The next prime is 662543525061623. The reversal of 662543525061603 is 306160525345266.

It is a happy number.

662543525061603 is a `hidden beast` number, since 6 + 6 + 2 + 5 + 4 + 3 + 5 + 25 + 0 + 6 + 1 + 603 = 666.

It is not a de Polignac number, because 662543525061603 - 2² = 662543525061599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 662543525061603.

It is not an unprimeable number, because it can be changed into a prime (662543525061623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264625726 + ... + 267117692.

It is an arithmetic number, because the mean of its divisors is an integer number (40802713183232).

Almost surely, 2^{662543525061603} is an apocalyptic number.

662543525061603 is a deficient number, since it is larger than the sum of its proper divisors (316721591335965).

662543525061603 is a wasteful number, since it uses less digits than its factorization.

662543525061603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179023 (or 3179020 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 54.

The spelling of 662543525061603 in words is "six hundred sixty-two trillion, five hundred forty-three billion, five hundred twenty-five million, sixty-one thousand, six hundred three".