662061126442 has 4 divisors (see below), whose sum is σ = 993091689666. Its totient is φ = 331030563220.

The previous prime is 662061126367. The next prime is 662061126449. The reversal of 662061126442 is 244621160266.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 660886076601 + 1175049841 = 812949^2 + 34279^2 .

It is a junction number, because it is equal to n+sod(n) for n = 662061126395 and 662061126404.

It is not an unprimeable number, because it can be changed into a prime (662061126449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165515281609 + ... + 165515281612.

Almost surely, 2^662061126442 is an apocalyptic number.

662061126442 is a deficient number, since it is larger than the sum of its proper divisors (331030563224).

662061126442 is a wasteful number, since it uses less digits than its factorization.

662061126442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331030563223.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 662061126442 in words is "six hundred sixty-two billion, sixty-one million, one hundred twenty-six thousand, four hundred forty-two".