20396402487360 has 672 divisors, whose sum is σ = 73159799661312. Its totient is φ = 5211198996480.

The previous prime is 20396402487337. The next prime is 20396402487361. The reversal of 20396402487360 is 6378420469302.

20396402487360 is a `hidden beast` number, since 2 + 0 + 3 + 96 + 40 + 2 + 487 + 36 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20396402487297 and 20396402487306.

It is not an unprimeable number, because it can be changed into a prime (20396402487361) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1986592947 + ... + 1986603213.

It is an arithmetic number, because the mean of its divisors is an integer number (108868749496).

Almost surely, 2^{20396402487360} is an apocalyptic number.

20396402487360 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 20396402487360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36579899830656).

20396402487360 is an abundant number, since it is smaller than the sum of its proper divisors (52763397173952).

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

20396402487360 is a wasteful number, since it uses less digits than its factorization.

20396402487360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611 (or 10598 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 20396402487360 in words is "twenty trillion, three hundred ninety-six billion, four hundred two million, four hundred eighty-seven thousand, three hundred sixty".