20352265442136 has 128 divisors (see below), whose sum is σ = 56831544000000. Its totient is φ = 6748407768960.

The previous prime is 20352265442101. The next prime is 20352265442137. The reversal of 20352265442136 is 63124456225302.

20352265442136 is a `hidden beast` number, since 2 + 0 + 3 + 52 + 2 + 6 + 544 + 21 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20352265442091 and 20352265442100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352265442137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189978715 + ... + 190085813.

It is an arithmetic number, because the mean of its divisors is an integer number (443996437500).

Almost surely, 2^{20352265442136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20352265442136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28415772000000).

20352265442136 is an abundant number, since it is smaller than the sum of its proper divisors (36479278557864).

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

20352265442136 is a wasteful number, since it uses less digits than its factorization.

20352265442136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111734 (or 111724 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 20352265442136 in words is "twenty trillion, three hundred fifty-two billion, two hundred sixty-five million, four hundred forty-two thousand, one hundred thirty-six".