1020660615305 has 8 divisors (see below), whose sum is σ = 1231205266944. Its totient is φ = 812253473200.

The previous prime is 1020660615281. The next prime is 1020660615319. The reversal of 1020660615305 is 5035160660201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1020660615305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534376331 + ... + 534378240.

It is an arithmetic number, because the mean of its divisors is an integer number (153900658368).

Almost surely, 2^{1020660615305} is an apocalyptic number.

It is an amenable number.

1020660615305 is a deficient number, since it is larger than the sum of its proper divisors (210544651639).

1020660615305 is a wasteful number, since it uses less digits than its factorization.

1020660615305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068754767.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 1020660615305 in words is "one trillion, twenty billion, six hundred sixty million, six hundred fifteen thousand, three hundred five".