1016859961 has 16 divisors (see below), whose sum is σ = 1119121920. Its totient is φ = 918141120.

The previous prime is 1016859959. The next prime is 1016859967. The reversal of 1016859961 is 1699586101.

It is a happy number.

1016859961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1016859961 - 2¹ = 1016859959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1016859967) 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, 245296 + ... + 249406.

It is an arithmetic number, because the mean of its divisors is an integer number (69945120).

Almost surely, 2^1016859961 is an apocalyptic number.

It is an amenable number.

1016859961 is a deficient number, since it is larger than the sum of its proper divisors (102261959).

1016859961 is a wasteful number, since it uses less digits than its factorization.

1016859961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 1016859961 is about 31888.2417357872. The cubic root of 1016859961 is about 1005.5886953000.

The spelling of 1016859961 in words is "one billion, sixteen million, eight hundred fifty-nine thousand, nine hundred sixty-one".