20453166320540 has 48 divisors (see below), whose sum is σ = 47046431275200. Its totient is φ = 7434497774592.

The previous prime is 20453166320501. The next prime is 20453166320621. The reversal of 20453166320540 is 4502366135402.

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, 1037168960 + ... + 1037188679.

It is an arithmetic number, because the mean of its divisors is an integer number (980133984900).

Almost surely, 2^{20453166320540} is an apocalyptic number.

20453166320540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20453166320540 is an abundant number, since it is smaller than the sum of its proper divisors (26593264954660).

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

20453166320540 is a wasteful number, since it uses less digits than its factorization.

20453166320540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074357694 (or 2074357692 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 20453166320540 in words is "twenty trillion, four hundred fifty-three billion, one hundred sixty-six million, three hundred twenty thousand, five hundred forty".