1151445214505 has 16 divisors (see below), whose sum is σ = 1390454193744. Its totient is φ = 915348499200.

The previous prime is 1151445214487. The next prime is 1151445214511. The reversal of 1151445214505 is 5054125441511.

It can be written as a sum of positive squares in 8 ways, for example, as 36471832576 + 1114973381929 = 190976^2 + 1055923^2 .

It is not a de Polignac number, because 1151445214505 - 2¹⁰ = 1151445213481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294247 + ... + 1994483.

It is an arithmetic number, because the mean of its divisors is an integer number (86903387109).

Almost surely, 2^{1151445214505} is an apocalyptic number.

It is an amenable number.

1151445214505 is a deficient number, since it is larger than the sum of its proper divisors (239008979239).

1151445214505 is a wasteful number, since it uses less digits than its factorization.

1151445214505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702316.

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 1151445214505 in words is "one trillion, one hundred fifty-one billion, four hundred forty-five million, two hundred fourteen thousand, five hundred five".