20947477096280 has 64 divisors (see below), whose sum is σ = 54623602298880. Its totient is φ = 7080837321600.

The previous prime is 20947477096159. The next prime is 20947477096423. The reversal of 20947477096280 is 8269077474902.

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, 526828136 + ... + 526867895.

It is an arithmetic number, because the mean of its divisors is an integer number (853493785920).

Almost surely, 2^{20947477096280} is an apocalyptic number.

20947477096280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20947477096280 is an abundant number, since it is smaller than the sum of its proper divisors (33676125202600).

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

20947477096280 is a wasteful number, since it uses less digits than its factorization.

20947477096280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053696120 (or 1053696116 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 65.

The spelling of 20947477096280 in words is "twenty trillion, nine hundred forty-seven billion, four hundred seventy-seven million, ninety-six thousand, two hundred eighty".