1662845156 has 12 divisors (see below), whose sum is σ = 3325690368. Its totient is φ = 712647912.

The previous prime is 1662845141. The next prime is 1662845179. The reversal of 1662845156 is 6515482661.

1662845156 is an admirable 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, 29693636 + ... + 29693691.

It is an arithmetic number, because the mean of its divisors is an integer number (277140864).

Almost surely, 2^1662845156 is an apocalyptic number.

It is an amenable number.

1662845156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1662845156 is a wasteful number, since it uses less digits than its factorization.

1662845156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59387338 (or 59387336 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 1662845156 is about 40777.9984305262. The cubic root of 1662845156 is about 1184.7242276373.

The spelling of 1662845156 in words is "one billion, six hundred sixty-two million, eight hundred forty-five thousand, one hundred fifty-six".