1681500288736 has 48 divisors (see below), whose sum is σ = 3381952150080. Its totient is φ = 822603059200.

The previous prime is 1681500288701. The next prime is 1681500288737. The reversal of 1681500288736 is 6378820051861.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681500288737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4652136 + ... + 5000536.

It is an arithmetic number, because the mean of its divisors is an integer number (70457336460).

Almost surely, 2^{1681500288736} is an apocalyptic number.

1681500288736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1681500288736 is an abundant number, since it is smaller than the sum of its proper divisors (1700451861344).

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

1681500288736 is a wasteful number, since it uses less digits than its factorization.

1681500288736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351667 (or 351659 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 1681500288736 in words is "one trillion, six hundred eighty-one billion, five hundred million, two hundred eighty-eight thousand, seven hundred thirty-six".