542346166 has 4 divisors (see below), whose sum is σ = 813519252. Its totient is φ = 271173082.

The previous prime is 542346137. The next prime is 542346179. The reversal of 542346166 is 661643245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661643245 = 5 ⋅132328649.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135586540 + ... + 135586543.

It is an arithmetic number, because the mean of its divisors is an integer number (203379813).

Almost surely, 2^542346166 is an apocalyptic number.

542346166 is a deficient number, since it is larger than the sum of its proper divisors (271173086).

542346166 is a wasteful number, since it uses less digits than its factorization.

542346166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271173085.

The product of its digits is 103680, while the sum is 37.

The square root of 542346166 is about 23288.3268183869. The cubic root of 542346166 is about 815.5029281957.

The spelling of 542346166 in words is "five hundred forty-two million, three hundred forty-six thousand, one hundred sixty-six".