1151874166521 has 64 divisors (see below), whose sum is σ = 1759774318848. Its totient is φ = 663915184128.

The previous prime is 1151874166519. The next prime is 1151874166591. The reversal of 1151874166521 is 1256614781511.

It is not a de Polignac number, because 1151874166521 - 2¹ = 1151874166519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1151874166591) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125787075 + ... + 125796231.

It is an arithmetic number, because the mean of its divisors is an integer number (27496473732).

Almost surely, 2^{1151874166521} is an apocalyptic number.

It is an amenable number.

1151874166521 is a deficient number, since it is larger than the sum of its proper divisors (607900152327).

1151874166521 is a wasteful number, since it uses less digits than its factorization.

1151874166521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10090.

The product of its digits is 403200, while the sum is 48.

The spelling of 1151874166521 in words is "one trillion, one hundred fifty-one billion, eight hundred seventy-four million, one hundred sixty-six thousand, five hundred twenty-one".