1016551061 has 16 divisors (see below), whose sum is σ = 1076433600. Its totient is φ = 958843008.

The previous prime is 1016551043. The next prime is 1016551073. The reversal of 1016551061 is 1601556101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016551061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1016551061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016551961) 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 15 ways as a sum of consecutive naturals, for example, 156170 + ... + 162548.

It is an arithmetic number, because the mean of its divisors is an integer number (67277100).

Almost surely, 2^1016551061 is an apocalyptic number.

It is an amenable number.

1016551061 is a deficient number, since it is larger than the sum of its proper divisors (59882539).

1016551061 is an equidigital number, since it uses as much as digits as its factorization.

1016551061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6548.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1016551061 is about 31883.3978898109. The cubic root of 1016551061 is about 1005.4868596428.

The spelling of 1016551061 in words is "one billion, sixteen million, five hundred fifty-one thousand, sixty-one".