20345002661460 has 48 divisors (see below), whose sum is σ = 57768345597312. Its totient is φ = 5348920886400.

The previous prime is 20345002661453. The next prime is 20345002661483. The reversal of 20345002661460 is 6416620054302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2387906851 + ... + 2387915370.

It is an arithmetic number, because the mean of its divisors is an integer number (1203507199944).

Almost surely, 2^{20345002661460} is an apocalyptic number.

20345002661460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20345002661460 is an abundant number, since it is smaller than the sum of its proper divisors (37423342935852).

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

20345002661460 is a wasteful number, since it uses less digits than its factorization.

20345002661460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775822304 (or 4775822302 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 20345002661460 in words is "twenty trillion, three hundred forty-five billion, two million, six hundred sixty-one thousand, four hundred sixty".