1662168056 has 16 divisors (see below), whose sum is σ = 3119407200. Its totient is φ = 830326144.

The previous prime is 1662168049. The next prime is 1662168097. The reversal of 1662168056 is 6508612661.

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 3 ways as a sum of consecutive naturals, for example, 85361 + ... + 103008.

It is an arithmetic number, because the mean of its divisors is an integer number (194962950).

Almost surely, 2^1662168056 is an apocalyptic number.

It is an amenable number.

1662168056 is a deficient number, since it is larger than the sum of its proper divisors (1457239144).

1662168056 is a wasteful number, since it uses less digits than its factorization.

1662168056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189478 (or 189474 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1662168056 is about 40769.6953140442. The cubic root of 1662168056 is about 1184.5634017426.

The spelling of 1662168056 in words is "one billion, six hundred sixty-two million, one hundred sixty-eight thousand, fifty-six".