4645660042 has 4 divisors (see below), whose sum is σ = 6968490066. Its totient is φ = 2322830020.

The previous prime is 4645660013. The next prime is 4645660051. The reversal of 4645660042 is 2400665464.

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., 2459068921 + 2186591121 = 49589^2 + 46761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4645659983 and 4645660010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1161415009 + ... + 1161415012.

Almost surely, 2^4645660042 is an apocalyptic number.

4645660042 is a deficient number, since it is larger than the sum of its proper divisors (2322830024).

4645660042 is a wasteful number, since it uses less digits than its factorization.

4645660042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322830023.

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 4645660042 is about 68159.0789403730. The cubic root of 4645660042 is about 1668.5881001559.

The spelling of 4645660042 in words is "four billion, six hundred forty-five million, six hundred sixty thousand, forty-two".