50666135642 has 16 divisors (see below), whose sum is σ = 81701274240. Its totient is φ = 23489114688.

The previous prime is 50666135633. The next prime is 50666135693. The reversal of 50666135642 is 24653166605.

50666135642 is a modest number, since divided by 135642 gives 50666 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 50666135593 and 50666135602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14182463 + ... + 14186034.

It is an arithmetic number, because the mean of its divisors is an integer number (5106329640).

Almost surely, 2^50666135642 is an apocalyptic number.

50666135642 is a deficient number, since it is larger than the sum of its proper divisors (31035138598).

50666135642 is a wasteful number, since it uses less digits than its factorization.

50666135642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28368565.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 50666135642 in words is "fifty billion, six hundred sixty-six million, one hundred thirty-five thousand, six hundred forty-two".