1656541158 has 32 divisors (see below), whose sum is σ = 3362964480. Its totient is φ = 543913920.

The previous prime is 1656541157. The next prime is 1656541169. The reversal of 1656541158 is 8511456561.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656541157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138991 + ... + 150437.

It is an arithmetic number, because the mean of its divisors is an integer number (105092640).

Almost surely, 2^1656541158 is an apocalyptic number.

1656541158 is an abundant number, since it is smaller than the sum of its proper divisors (1706423322).

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

1656541158 is a wasteful number, since it uses less digits than its factorization.

1656541158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11812.

The product of its digits is 144000, while the sum is 42.

The square root of 1656541158 is about 40700.6284718062. The cubic root of 1656541158 is about 1183.2251991030.

The spelling of 1656541158 in words is "one billion, six hundred fifty-six million, five hundred forty-one thousand, one hundred fifty-eight".