20146635353320 has 32 divisors (see below), whose sum is σ = 51805633766400. Its totient is φ = 6907417835328.

The previous prime is 20146635353297. The next prime is 20146635353323. The reversal of 20146635353320 is 2335353664102.

It is not an unprimeable number, because it can be changed into a prime (20146635353323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35976134280 + ... + 35976134839.

It is an arithmetic number, because the mean of its divisors is an integer number (1618926055200).

Almost surely, 2^{20146635353320} is an apocalyptic number.

20146635353320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20146635353320 is an abundant number, since it is smaller than the sum of its proper divisors (31658998413080).

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

20146635353320 is a wasteful number, since it uses less digits than its factorization.

20146635353320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71952269137 (or 71952269133 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 43.

The spelling of 20146635353320 in words is "twenty trillion, one hundred forty-six billion, six hundred thirty-five million, three hundred fifty-three thousand, three hundred twenty".