1020655550215 has 16 divisors (see below), whose sum is σ = 1409826378240. Its totient is φ = 694842994080.

The previous prime is 1020655550203. The next prime is 1020655550231. The reversal of 1020655550215 is 5120555560201.

It is not a de Polignac number, because 1020655550215 - 2¹¹ = 1020655548167 is a prime.

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, 104892931 + ... + 104902660.

It is an arithmetic number, because the mean of its divisors is an integer number (88114148640).

Almost surely, 2^{1020655550215} is an apocalyptic number.

1020655550215 is a deficient number, since it is larger than the sum of its proper divisors (389170828025).

1020655550215 is a wasteful number, since it uses less digits than its factorization.

1020655550215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209795742.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 1020655550215 in words is "one trillion, twenty billion, six hundred fifty-five million, five hundred fifty thousand, two hundred fifteen".