20117258250756 has 48 divisors (see below), whose sum is σ = 47300606071488. Its totient is φ = 6654280422400.

The previous prime is 20117258250707. The next prime is 20117258250757. The reversal of 20117258250756 is 65705285271102.

It is a super-2 number, since 2×20117258250756² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20117258250699 and 20117258250708.

It is not an unprimeable number, because it can be changed into a prime (20117258250757) 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, 38400016 + ... + 38920376.

It is an arithmetic number, because the mean of its divisors is an integer number (985429293156).

Almost surely, 2^{20117258250756} is an apocalyptic number.

It is an amenable number.

20117258250756 is an abundant number, since it is smaller than the sum of its proper divisors (27183347820732).

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

20117258250756 is a wasteful number, since it uses less digits than its factorization.

20117258250756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545092 (or 545090 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 51.

The spelling of 20117258250756 in words is "twenty trillion, one hundred seventeen billion, two hundred fifty-eight million, two hundred fifty thousand, seven hundred fifty-six".