42850712615666 has 4 divisors (see below), whose sum is σ = 64276068923502. Its totient is φ = 21425356307832.

The previous prime is 42850712615591. The next prime is 42850712615693. The reversal of 42850712615666 is 66651621705824.

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., 42088110376225 + 762602239441 = 6487535^2 + 873271^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10712678153915 + ... + 10712678153918.

Almost surely, 2^{42850712615666} is an apocalyptic number.

42850712615666 is a deficient number, since it is larger than the sum of its proper divisors (21425356307836).

42850712615666 is a wasteful number, since it uses less digits than its factorization.

42850712615666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21425356307835.

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 42850712615666 in words is "forty-two trillion, eight hundred fifty billion, seven hundred twelve million, six hundred fifteen thousand, six hundred sixty-six".