18797162866560 has 1024 divisors, whose sum is σ = 75142867968000. Its totient is φ = 4406216196096.

The previous prime is 18797162866523. The next prime is 18797162866567. The reversal of 18797162866560 is 6566826179781.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18797162866567) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1183170937 + ... + 1183186823.

It is an arithmetic number, because the mean of its divisors is an integer number (73381707000).

Almost surely, 2^{18797162866560} is an apocalyptic number.

18797162866560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18797162866560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37571433984000).

18797162866560 is an abundant number, since it is smaller than the sum of its proper divisors (56345705101440).

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

18797162866560 is a wasteful number, since it uses less digits than its factorization.

18797162866560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16180 (or 16162 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 72.

The spelling of 18797162866560 in words is "eighteen trillion, seven hundred ninety-seven billion, one hundred sixty-two million, eight hundred sixty-six thousand, five hundred sixty".