20768361125 has 16 divisors (see below), whose sum is σ = 26054645760. Its totient is φ = 16527682000.

The previous prime is 20768361121. The next prime is 20768361127. The reversal of 20768361125 is 52116386702.

It is not a de Polignac number, because 20768361125 - 2² = 20768361121 is a prime.

It is a super-2 number, since 2×20768361125² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20768361121) 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, 411065 + ... + 458814.

It is an arithmetic number, because the mean of its divisors is an integer number (1628415360).

Almost surely, 2^20768361125 is an apocalyptic number.

20768361125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20768361125 is a deficient number, since it is larger than the sum of its proper divisors (5286284635).

20768361125 is an equidigital number, since it uses as much as digits as its factorization.

20768361125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870085 (or 870075 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 20768361125 in words is "twenty billion, seven hundred sixty-eight million, three hundred sixty-one thousand, one hundred twenty-five".