1551011060505 has 16 divisors (see below), whose sum is σ = 2561669881344. Its totient is φ = 800521837440.

The previous prime is 1551011060503. The next prime is 1551011060519. The reversal of 1551011060505 is 5050601101551.

It is not a de Polignac number, because 1551011060505 - 2¹ = 1551011060503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1551011060503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1667753364 + ... + 1667754293.

It is an arithmetic number, because the mean of its divisors is an integer number (160104367584).

Almost surely, 2^{1551011060505} is an apocalyptic number.

1551011060505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1551011060505 is a deficient number, since it is larger than the sum of its proper divisors (1010658820839).

1551011060505 is a wasteful number, since it uses less digits than its factorization.

1551011060505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335507696.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 1551011060505 in words is "one trillion, five hundred fifty-one billion, eleven million, sixty thousand, five hundred five".