101601720693 has 24 divisors (see below), whose sum is σ = 160269965856. Its totient is φ = 61511306400.

The previous prime is 101601720683. The next prime is 101601720739. The reversal of 101601720693 is 396027106101.

It is not a de Polignac number, because 101601720693 - 2¹³ = 101601712501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101601720673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452155 + ... + 638472.

It is an arithmetic number, because the mean of its divisors is an integer number (6677915244).

Almost surely, 2^101601720693 is an apocalyptic number.

It is an amenable number.

101601720693 is a deficient number, since it is larger than the sum of its proper divisors (58668245163).

101601720693 is a wasteful number, since it uses less digits than its factorization.

101601720693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091585 (or 1091582 counting only the distinct ones).

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

Adding to 101601720693 its reverse (396027106101), we get a palindrome (497628826794).

The spelling of 101601720693 in words is "one hundred one billion, six hundred one million, seven hundred twenty thousand, six hundred ninety-three".