1016126505 has 32 divisors (see below), whose sum is σ = 1868745600. Its totient is φ = 523244736.

The previous prime is 1016126473. The next prime is 1016126539. The reversal of 1016126505 is 5056216101.

It is a happy number.

1016126505 is a `hidden beast` number, since 1 + 0 + 1 + 6 + 1 + 2 + 650 + 5 = 666.

It is not a de Polignac number, because 1016126505 - 2⁵ = 1016126473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125859 + ... + 133688.

It is an arithmetic number, because the mean of its divisors is an integer number (58398300).

Almost surely, 2^1016126505 is an apocalyptic number.

1016126505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1016126505 is a deficient number, since it is larger than the sum of its proper divisors (852619095).

1016126505 is a wasteful number, since it uses less digits than its factorization.

1016126505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259590 (or 259584 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1016126505 is about 31876.7392466670. The cubic root of 1016126505 is about 1005.3468617821.

The spelling of 1016126505 in words is "one billion, sixteen million, one hundred twenty-six thousand, five hundred five".