642660602062 has 8 divisors (see below), whose sum is σ = 965563483896. Its totient is φ = 320806107432.

The previous prime is 642660602039. The next prime is 642660602183. The reversal of 642660602062 is 260206066246.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262095268 + ... + 262097719.

It is an arithmetic number, because the mean of its divisors is an integer number (120695435487).

Almost surely, 2^642660602062 is an apocalyptic number.

642660602062 is a deficient number, since it is larger than the sum of its proper divisors (322902881834).

642660602062 is a wasteful number, since it uses less digits than its factorization.

642660602062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524193602.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 642660602062 in words is "six hundred forty-two billion, six hundred sixty million, six hundred two thousand, sixty-two".