1657046166 has 16 divisors (see below), whose sum is σ = 3376623024. Its totient is φ = 541926944.

The previous prime is 1657046129. The next prime is 1657046173. The reversal of 1657046166 is 6616407561.

It is a happy number.

It is a congruent number.

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, 2605101 + ... + 2605736.

It is an arithmetic number, because the mean of its divisors is an integer number (211038939).

Almost surely, 2^1657046166 is an apocalyptic number.

1657046166 is an abundant number, since it is smaller than the sum of its proper divisors (1719576858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1657046166 is a wasteful number, since it uses less digits than its factorization.

1657046166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210895.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1657046166 is about 40706.8319327358. The cubic root of 1657046166 is about 1183.3454250081.

The spelling of 1657046166 in words is "one billion, six hundred fifty-seven million, forty-six thousand, one hundred sixty-six".