1681114500 has 480 divisors, whose sum is σ = 6156294144. Its totient is φ = 396576000.

The previous prime is 1681114493. The next prime is 1681114517. The reversal of 1681114500 is 54111861.

It is a super-2 number, since 2×1681114500² = 5652291924220500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 16321449 + ... + 16321551.

Almost surely, 2^1681114500 is an apocalyptic number.

1681114500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1681114500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3078147072).

1681114500 is an abundant number, since it is smaller than the sum of its proper divisors (4475179644).

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

1681114500 is a wasteful number, since it uses less digits than its factorization.

1681114500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1681114500 is about 41001.3963176865. The cubic root of 1681114500 is about 1189.0472094683.

The spelling of 1681114500 in words is "one billion, six hundred eighty-one million, one hundred fourteen thousand, five hundred".