1656156166 has 32 divisors (see below), whose sum is σ = 2996271360. Its totient is φ = 670687776.

The previous prime is 1656156143. The next prime is 1656156179. The reversal of 1656156166 is 6616516561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97761 + ... + 113443.

It is an arithmetic number, because the mean of its divisors is an integer number (93633480).

Almost surely, 2^1656156166 is an apocalyptic number.

1656156166 is a deficient number, since it is larger than the sum of its proper divisors (1340115194).

1656156166 is a wasteful number, since it uses less digits than its factorization.

1656156166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16108.

The product of its digits is 194400, while the sum is 43.

The square root of 1656156166 is about 40695.8986385606. The cubic root of 1656156166 is about 1183.1335286711.

It can be divided in two parts, 16561 and 56166, that added together give a palindrome (72727).

The spelling of 1656156166 in words is "one billion, six hundred fifty-six million, one hundred fifty-six thousand, one hundred sixty-six".