1601681616976 has 20 divisors (see below), whose sum is σ = 3546580723552. Its totient is φ = 686434978656.

The previous prime is 1601681616961. The next prime is 1601681616991. The reversal of 1601681616976 is 6796161861061.

It is an interprime number because it is at equal distance from previous prime (1601681616961) and next prime (1601681616991).

It is a self number, because there is not a number n which added to its sum of digits gives 1601681616976.

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, 7150364250 + ... + 7150364473.

Almost surely, 2^{1601681616976} is an apocalyptic number.

1601681616976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1601681616976 is an abundant number, since it is smaller than the sum of its proper divisors (1944899106576).

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

1601681616976 is a wasteful number, since it uses less digits than its factorization.

1601681616976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14300728738 (or 14300728732 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 58.

The spelling of 1601681616976 in words is "one trillion, six hundred one billion, six hundred eighty-one million, six hundred sixteen thousand, nine hundred seventy-six".