1020505102415 has 8 divisors (see below), whose sum is σ = 1236730936608. Its totient is φ = 808320872800.

The previous prime is 1020505102399. The next prime is 1020505102447. The reversal of 1020505102415 is 5142015050201.

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

It is not a de Polignac number, because 1020505102415 - 2⁴ = 1020505102399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010400587 + ... + 1010401596.

It is an arithmetic number, because the mean of its divisors is an integer number (154591367076).

Almost surely, 2^{1020505102415} is an apocalyptic number.

1020505102415 is a deficient number, since it is larger than the sum of its proper divisors (216225834193).

1020505102415 is a wasteful number, since it uses less digits than its factorization.

1020505102415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020802289.

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 1020505102415 in words is "one trillion, twenty billion, five hundred five million, one hundred two thousand, four hundred fifteen".