20360155560140 has 288 divisors, whose sum is σ = 51439385491200. Its totient is φ = 6703954145280.

The previous prime is 20360155560091. The next prime is 20360155560271. The reversal of 20360155560140 is 4106555106302.

It is a junction number, because it is equal to n+sod(n) for n = 20360155560094 and 20360155560103.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 521781551 + ... + 521820569.

It is an arithmetic number, because the mean of its divisors is an integer number (178608977400).

Almost surely, 2^{20360155560140} is an apocalyptic number.

20360155560140 is a gapful number since it is divisible by the number (20) 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 20360155560140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25719692745600).

20360155560140 is an abundant number, since it is smaller than the sum of its proper divisors (31079229931060).

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

20360155560140 is a wasteful number, since it uses less digits than its factorization.

20360155560140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39385 (or 39366 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 20360155560140 in words is "twenty trillion, three hundred sixty billion, one hundred fifty-five million, five hundred sixty thousand, one hundred forty".