101780660784 has 40 divisors (see below), whose sum is σ = 286836409152. Its totient is φ = 30842624320.

The previous prime is 101780660711. The next prime is 101780660797. The reversal of 101780660784 is 487066087101.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96382674 + ... + 96383729.

Almost surely, 2^101780660784 is an apocalyptic number.

It is an amenable number.

101780660784 is an abundant number, since it is smaller than the sum of its proper divisors (185055748368).

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

101780660784 is a wasteful number, since it uses less digits than its factorization.

101780660784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192766425 (or 192766419 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 101780660784 in words is "one hundred one billion, seven hundred eighty million, six hundred sixty thousand, seven hundred eighty-four".