662061111583 has 4 divisors (see below), whose sum is σ = 690846377328. Its totient is φ = 633275845840.

The previous prime is 662061111527. The next prime is 662061111599. The reversal of 662061111583 is 385111160266.

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 662061111583 - 2²⁵ = 662027557151 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 (662061181583) 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, 14392632838 + ... + 14392632883.

It is an arithmetic number, because the mean of its divisors is an integer number (172711594332).

Almost surely, 2^662061111583 is an apocalyptic number.

662061111583 is a deficient number, since it is larger than the sum of its proper divisors (28785265745).

662061111583 is a wasteful number, since it uses less digits than its factorization.

662061111583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28785265744.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 662061111583 in words is "six hundred sixty-two billion, sixty-one million, one hundred eleven thousand, five hundred eighty-three".