20411163015456 has 48 divisors (see below), whose sum is σ = 56731026621024. Its totient is φ = 6403502121984.

The previous prime is 20411163015409. The next prime is 20411163015461. The reversal of 20411163015456 is 65451036111402.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6253418410 + ... + 6253421673.

It is an arithmetic number, because the mean of its divisors is an integer number (1181896387938).

Almost surely, 2^{20411163015456} is an apocalyptic number.

It is an amenable number.

20411163015456 is an abundant number, since it is smaller than the sum of its proper divisors (36319863605568).

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

20411163015456 is a wasteful number, since it uses less digits than its factorization.

20411163015456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12506840113 (or 12506840105 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 20411163015456 its reverse (65451036111402), we get a palindrome (85862199126858).

The spelling of 20411163015456 in words is "twenty trillion, four hundred eleven billion, one hundred sixty-three million, fifteen thousand, four hundred fifty-six".