1621065068 has 24 divisors (see below), whose sum is σ = 3247860000. Its totient is φ = 693514368.

The previous prime is 1621065059. The next prime is 1621065071. The reversal of 1621065068 is 8605601261.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34943 + ... + 66806.

It is an arithmetic number, because the mean of its divisors is an integer number (135327500).

Almost surely, 2^1621065068 is an apocalyptic number.

It is an amenable number.

1621065068 is an abundant number, since it is smaller than the sum of its proper divisors (1626794932).

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

1621065068 is a wasteful number, since it uses less digits than its factorization.

1621065068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102329 (or 102327 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1621065068 is about 40262.4523346505. The cubic root of 1621065068 is about 1174.7176186973.

The spelling of 1621065068 in words is "one billion, six hundred twenty-one million, sixty-five thousand, sixty-eight".