639616057622 has 8 divisors (see below), whose sum is σ = 967914565416. Its totient is φ = 316977869152.

The previous prime is 639616057621. The next prime is 639616057651. The reversal of 639616057622 is 226750616936.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (639616057621) 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, 1415079548 + ... + 1415079999.

It is an arithmetic number, because the mean of its divisors is an integer number (120989320677).

Almost surely, 2^639616057622 is an apocalyptic number.

639616057622 is a deficient number, since it is larger than the sum of its proper divisors (328298507794).

639616057622 is a wasteful number, since it uses less digits than its factorization.

639616057622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830159662.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 639616057622 in words is "six hundred thirty-nine billion, six hundred sixteen million, fifty-seven thousand, six hundred twenty-two".