1016321610 has 64 divisors (see below), whose sum is σ = 2521445760. Its totient is φ = 262030080.

The previous prime is 1016321597. The next prime is 1016321611. The reversal of 1016321610 is 161236101.

It is a super-2 number, since 2×1016321610² = 2065819229905984200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1016321611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103264 + ... + 112676.

It is an arithmetic number, because the mean of its divisors is an integer number (39397590).

Almost surely, 2^1016321610 is an apocalyptic number.

1016321610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1016321610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260722880).

1016321610 is an abundant number, since it is smaller than the sum of its proper divisors (1505124150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1016321610 is a wasteful number, since it uses less digits than its factorization.

1016321610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9543.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1016321610 is about 31879.7994033840. The cubic root of 1016321610 is about 1005.4112027363.

Adding to 1016321610 its reverse (161236101), we get a palindrome (1177557711).

The spelling of 1016321610 in words is "one billion, sixteen million, three hundred twenty-one thousand, six hundred ten".