1420505536655 has 16 divisors (see below), whose sum is σ = 1812971268864. Its totient is φ = 1064760875520.

The previous prime is 1420505536651. The next prime is 1420505536661. The reversal of 1420505536655 is 5566355050241.

It is not a de Polignac number, because 1420505536655 - 2² = 1420505536651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420505536651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37451516 + ... + 37489425.

It is an arithmetic number, because the mean of its divisors is an integer number (113310704304).

Almost surely, 2^{1420505536655} is an apocalyptic number.

1420505536655 is a deficient number, since it is larger than the sum of its proper divisors (392465732209).

1420505536655 is a wasteful number, since it uses less digits than its factorization.

1420505536655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74941186.

The product of its (nonzero) digits is 2700000, while the sum is 47.

The spelling of 1420505536655 in words is "one trillion, four hundred twenty billion, five hundred five million, five hundred thirty-six thousand, six hundred fifty-five".