20107161072 has 60 divisors (see below), whose sum is σ = 56285236800. Its totient is φ = 6700825344.

The previous prime is 20107161031. The next prime is 20107161073. The reversal of 20107161072 is 27016170102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20107161073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 718804 + ... + 746252.

It is an arithmetic number, because the mean of its divisors is an integer number (938087280).

Almost surely, 2^20107161072 is an apocalyptic number.

It is an amenable number.

20107161072 is an abundant number, since it is smaller than the sum of its proper divisors (36178075728).

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

20107161072 is a wasteful number, since it uses less digits than its factorization.

20107161072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32550 (or 32541 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The spelling of 20107161072 in words is "twenty billion, one hundred seven million, one hundred sixty-one thousand, seventy-two".