20179620101 has 16 divisors (see below), whose sum is σ = 21810159360. Its totient is φ = 18613499520.

The previous prime is 20179620079. The next prime is 20179620107. The reversal of 20179620101 is 10102697102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20179620101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20179620107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530561 + ... + 567321.

It is an arithmetic number, because the mean of its divisors is an integer number (1363134960).

Almost surely, 2^20179620101 is an apocalyptic number.

It is an amenable number.

20179620101 is a deficient number, since it is larger than the sum of its proper divisors (1630539259).

20179620101 is a wasteful number, since it uses less digits than its factorization.

20179620101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37636.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 20179620101 in words is "twenty billion, one hundred seventy-nine million, six hundred twenty thousand, one hundred one".