20474552646480 has 160 divisors (see below), whose sum is σ = 63528047694720. Its totient is φ = 5454985338880.

The previous prime is 20474552646439. The next prime is 20474552646497. The reversal of 20474552646480 is 8464625547402.

It is a self number, because there is not a number n which added to its sum of digits gives 20474552646480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1821087739 + ... + 1821098981.

It is an arithmetic number, because the mean of its divisors is an integer number (397050298092).

Almost surely, 2^{20474552646480} is an apocalyptic number.

20474552646480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20474552646480 is an abundant number, since it is smaller than the sum of its proper divisors (43053495048240).

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

20474552646480 is a wasteful number, since it uses less digits than its factorization.

20474552646480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17389 (or 17383 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 57.

The spelling of 20474552646480 in words is "twenty trillion, four hundred seventy-four billion, five hundred fifty-two million, six hundred forty-six thousand, four hundred eighty".