101720961036 has 36 divisors (see below), whose sum is σ = 257162919832. Its totient is φ = 33902380224.

The previous prime is 101720960989. The next prime is 101720961037. The reversal of 101720961036 is 630169027101.

101720961036 is a `hidden beast` number, since 1 + 0 + 1 + 7 + 2 + 0 + 9 + 610 + 36 = 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 not an unprimeable number, because it can be changed into a prime (101720961037) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 82056 + ... + 458448.

Almost surely, 2^101720961036 is an apocalyptic number.

It is an amenable number.

101720961036 is an abundant number, since it is smaller than the sum of its proper divisors (155441958796).

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

101720961036 is a wasteful number, since it uses less digits than its factorization.

101720961036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383910 (or 383905 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

Adding to 101720961036 its reverse (630169027101), we get a palindrome (731889988137).

The spelling of 101720961036 in words is "one hundred one billion, seven hundred twenty million, nine hundred sixty-one thousand, thirty-six".