166284057 has 8 divisors (see below), whose sum is σ = 229357440. Its totient is φ = 107033360.

The previous prime is 166284047. The next prime is 166284113. The reversal of 166284057 is 750482661.

166284057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 166284057 - 2¹¹ = 166282009 is a prime.

It is a super-2 number, since 2×166284057² = 55300775224758498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166284047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955569 + ... + 955742.

It is an arithmetic number, because the mean of its divisors is an integer number (28669680).

Almost surely, 2^166284057 is an apocalyptic number.

It is an amenable number.

166284057 is a deficient number, since it is larger than the sum of its proper divisors (63073383).

166284057 is a wasteful number, since it uses less digits than its factorization.

166284057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911343.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 166284057 is about 12895.1175644117. The cubic root of 166284057 is about 549.8997690630.

The spelling of 166284057 in words is "one hundred sixty-six million, two hundred eighty-four thousand, fifty-seven".