1016645253 has 16 divisors (see below), whose sum is σ = 1460496576. Its totient is φ = 625328640.

The previous prime is 1016645249. The next prime is 1016645261. The reversal of 1016645253 is 3525466101.

It is not a de Polignac number, because 1016645253 - 2² = 1016645249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016645213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98718 + ... + 108528.

It is an arithmetic number, because the mean of its divisors is an integer number (91281036).

Almost surely, 2^1016645253 is an apocalyptic number.

1016645253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1016645253 is a deficient number, since it is larger than the sum of its proper divisors (443851323).

1016645253 is a wasteful number, since it uses less digits than its factorization.

1016645253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12484.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1016645253 is about 31884.8749879939. The cubic root of 1016645253 is about 1005.5179142866.

The spelling of 1016645253 in words is "one billion, sixteen million, six hundred forty-five thousand, two hundred fifty-three".