1016121626 has 12 divisors (see below), whose sum is σ = 1650446622. Its totient is φ = 468979056.

The previous prime is 1016121619. The next prime is 1016121629. The reversal of 1016121626 is 6261216101.

It can be written as a sum of positive squares in 3 ways, for example, as 442471225 + 573650401 = 21035^2 + 23951^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 1016121595 and 1016121604.

It is not an unprimeable number, because it can be changed into a prime (1016121629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1502801 + ... + 1503476.

Almost surely, 2^1016121626 is an apocalyptic number.

1016121626 is a deficient number, since it is larger than the sum of its proper divisors (634324996).

1016121626 is a wasteful number, since it uses less digits than its factorization.

1016121626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006305 (or 3006292 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1016121626 is about 31876.6627174176. The cubic root of 1016121626 is about 1005.3452526992.

Adding to 1016121626 its reverse (6261216101), we get a palindrome (7277337727).

The spelling of 1016121626 in words is "one billion, sixteen million, one hundred twenty-one thousand, six hundred twenty-six".