506211661642 has 8 divisors (see below), whose sum is σ = 775473183936. Its totient is φ = 247720600332.

The previous prime is 506211661607. The next prime is 506211661643. The reversal of 506211661642 is 246166112605.

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

It is a junction number, because it is equal to n+sod(n) for n = 506211661595 and 506211661604.

It is not an unprimeable number, because it can be changed into a prime (506211661643) 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, 2692615128 + ... + 2692615315.

It is an arithmetic number, because the mean of its divisors is an integer number (96934147992).

Almost surely, 2^506211661642 is an apocalyptic number.

506211661642 is a deficient number, since it is larger than the sum of its proper divisors (269261522294).

506211661642 is a wasteful number, since it uses less digits than its factorization.

506211661642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5385230492.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 506211661642 in words is "five hundred six billion, two hundred eleven million, six hundred sixty-one thousand, six hundred forty-two".