101681403804 has 36 divisors (see below), whose sum is σ = 265319221440. Its totient is φ = 32800452480.

The previous prime is 101681403779. The next prime is 101681403841. The reversal of 101681403804 is 408304186101.

It is a happy number.

101681403804 is a `hidden beast` number, since 10 + 168 + 1 + 403 + 80 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 45555069 + ... + 45557300.

Almost surely, 2^101681403804 is an apocalyptic number.

It is an amenable number.

101681403804 is an abundant number, since it is smaller than the sum of its proper divisors (163637817636).

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

101681403804 is a wasteful number, since it uses less digits than its factorization.

101681403804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91112410 (or 91112405 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

Adding to 101681403804 its reverse (408304186101), we get a palindrome (509985589905).

The spelling of 101681403804 in words is "one hundred one billion, six hundred eighty-one million, four hundred three thousand, eight hundred four".