1020066515 has 8 divisors (see below), whose sum is σ = 1318239888. Its totient is φ = 753279840.

The previous prime is 1020066479. The next prime is 1020066529. The reversal of 1020066515 is 5156600201.

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

It is not a de Polignac number, because 1020066515 - 2¹² = 1020062419 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7846601 + ... + 7846730.

It is an arithmetic number, because the mean of its divisors is an integer number (164779986).

Almost surely, 2^1020066515 is an apocalyptic number.

1020066515 is a deficient number, since it is larger than the sum of its proper divisors (298173373).

1020066515 is a wasteful number, since it uses less digits than its factorization.

1020066515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15693349.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1020066515 is about 31938.4801610847. The cubic root of 1020066515 is about 1006.6445899700.

Adding to 1020066515 its reverse (5156600201), we get a palindrome (6176666716).

The spelling of 1020066515 in words is "one billion, twenty million, sixty-six thousand, five hundred fifteen".