20188651701 has 16 divisors (see below), whose sum is σ = 26962494464. Its totient is φ = 13436978544.

The previous prime is 20188651673. The next prime is 20188651711. The reversal of 20188651701 is 10715688102.

It is not a de Polignac number, because 20188651701 - 2⁷ = 20188651573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20188651701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20188651711) 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 15 ways as a sum of consecutive naturals, for example, 7456590 + ... + 7459296.

It is an arithmetic number, because the mean of its divisors is an integer number (1685155904).

Almost surely, 2^20188651701 is an apocalyptic number.

It is an amenable number.

20188651701 is a deficient number, since it is larger than the sum of its proper divisors (6773842763).

20188651701 is a wasteful number, since it uses less digits than its factorization.

20188651701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5880.

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 20188651701 in words is "twenty billion, one hundred eighty-eight million, six hundred fifty-one thousand, seven hundred one".