1420355310561 has 24 divisors (see below), whose sum is σ = 2312914070880. Its totient is φ = 860821398360.

The previous prime is 1420355310553. The next prime is 1420355310571. The reversal of 1420355310561 is 1650135530241.

1420355310561 is a `hidden beast` number, since 1 + 4 + 2 + 0 + 35 + 53 + 10 + 561 = 666.

It is not a de Polignac number, because 1420355310561 - 2³ = 1420355310553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1420355310571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217375875 + ... + 217382408.

It is an arithmetic number, because the mean of its divisors is an integer number (96371419620).

Almost surely, 2^{1420355310561} is an apocalyptic number.

1420355310561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1420355310561 is a deficient number, since it is larger than the sum of its proper divisors (892558760319).

1420355310561 is a wasteful number, since it uses less digits than its factorization.

1420355310561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434758314 (or 434758297 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 1420355310561 in words is "one trillion, four hundred twenty billion, three hundred fifty-five million, three hundred ten thousand, five hundred sixty-one".