42166156 has 6 divisors (see below), whose sum is σ = 73790780. Its totient is φ = 21083076.

The previous prime is 42166147. The next prime is 42166177. The reversal of 42166156 is 65166124.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5270766 + ... + 5270773.

Almost surely, 2^42166156 is an apocalyptic number.

It is an amenable number.

42166156 is a deficient number, since it is larger than the sum of its proper divisors (31624624).

42166156 is a wasteful number, since it uses less digits than its factorization.

42166156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10541543 (or 10541541 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 42166156 is about 6493.5472586253. The cubic root of 42166156 is about 348.0604444265.

The spelling of 42166156 in words is "forty-two million, one hundred sixty-six thousand, one hundred fifty-six".