1016565551025 has 12 divisors (see below), whose sum is σ = 1680721711152. Its totient is φ = 542168293840.

The previous prime is 1016565550963. The next prime is 1016565551087. The reversal of 1016565551025 is 5201555656101.

1016565551025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1016565550963) and next prime (1016565551087).

It is not a de Polignac number, because 1016565551025 - 2¹³ = 1016565542833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6777103599 + ... + 6777103748.

It is an arithmetic number, because the mean of its divisors is an integer number (140060142596).

Almost surely, 2^{1016565551025} is an apocalyptic number.

1016565551025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1016565551025 is a deficient number, since it is larger than the sum of its proper divisors (664156160127).

1016565551025 is a wasteful number, since it uses less digits than its factorization.

1016565551025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13554207360 (or 13554207355 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 42.

The spelling of 1016565551025 in words is "one trillion, sixteen billion, five hundred sixty-five million, five hundred fifty-one thousand, twenty-five".