1016645951 has 4 divisors (see below), whose sum is σ = 1076448672. Its totient is φ = 956843232.

The previous prime is 1016645941. The next prime is 1016645969. The reversal of 1016645951 is 1595466101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1595466101 = 36037 ⋅44273.

It is not a de Polignac number, because 1016645951 - 2²⁶ = 949537087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016645941) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29901335 + ... + 29901368.

It is an arithmetic number, because the mean of its divisors is an integer number (269112168).

Almost surely, 2^1016645951 is an apocalyptic number.

1016645951 is a deficient number, since it is larger than the sum of its proper divisors (59802721).

1016645951 is an equidigital number, since it uses as much as digits as its factorization.

1016645951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59802720.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 1016645951 is about 31884.8859336207. The cubic root of 1016645951 is about 1005.5181444066.

The spelling of 1016645951 in words is "one billion, sixteen million, six hundred forty-five thousand, nine hundred fifty-one".