20257367167660 has 48 divisors (see below), whose sum is σ = 49118894443584. Its totient is φ = 6873781137408.

The previous prime is 20257367167627. The next prime is 20257367167679. The reversal of 20257367167660 is 6676176375202.

It is a junction number, because it is equal to n+sod(n) for n = 20257367167595 and 20257367167604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745839409 + ... + 745866568.

It is an arithmetic number, because the mean of its divisors is an integer number (1023310300908).

Almost surely, 2^{20257367167660} is an apocalyptic number.

20257367167660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20257367167660 is an abundant number, since it is smaller than the sum of its proper divisors (28861527275924).

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

20257367167660 is a wasteful number, since it uses less digits than its factorization.

20257367167660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491706090 (or 1491706088 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 58.

The spelling of 20257367167660 in words is "twenty trillion, two hundred fifty-seven billion, three hundred sixty-seven million, one hundred sixty-seven thousand, six hundred sixty".