1653668068 has 48 divisors (see below), whose sum is σ = 3154765824. Its totient is φ = 753932160.

The previous prime is 1653668041. The next prime is 1653668077. The reversal of 1653668068 is 8608663561.

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, 1658146 + ... + 1659142.

It is an arithmetic number, because the mean of its divisors is an integer number (65724288).

Almost surely, 2^1653668068 is an apocalyptic number.

It is an amenable number.

1653668068 is a deficient number, since it is larger than the sum of its proper divisors (1501097756).

1653668068 is a wasteful number, since it uses less digits than its factorization.

1653668068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 1653668068 is about 40665.3177535846. The cubic root of 1653668068 is about 1182.5407448858.

The spelling of 1653668068 in words is "one billion, six hundred fifty-three million, six hundred sixty-eight thousand, sixty-eight".