1681500003306 has 24 divisors (see below), whose sum is σ = 3549315801024. Its totient is φ = 531000000360.

The previous prime is 1681500003223. The next prime is 1681500003341. The reversal of 1681500003306 is 6033000051861.

It is a super-2 number, since 2×1681500003306² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388155730 + ... + 388160061.

It is an arithmetic number, because the mean of its divisors is an integer number (147888158376).

Almost surely, 2^{1681500003306} is an apocalyptic number.

1681500003306 is an abundant number, since it is smaller than the sum of its proper divisors (1867815797718).

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

1681500003306 is a wasteful number, since it uses less digits than its factorization.

1681500003306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776315834 (or 776315815 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 1681500003306 in words is "one trillion, six hundred eighty-one billion, five hundred million, three thousand, three hundred six".