11654378512452 has 72 divisors (see below), whose sum is σ = 31935913056320. Its totient is φ = 3562214500800.

The previous prime is 11654378512363. The next prime is 11654378512537. The reversal of 11654378512452 is 25421587345611.

11654378512452 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 4 + 3 + 78 + 512 + 4 + 52 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82388002 + ... + 82529337.

Almost surely, 2^{11654378512452} is an apocalyptic number.

11654378512452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11654378512452 is an abundant number, since it is smaller than the sum of its proper divisors (20281534543868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11654378512452 is a wasteful number, since it uses less digits than its factorization.

11654378512452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164917513 (or 164917508 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 11654378512452 in words is "eleven trillion, six hundred fifty-four billion, three hundred seventy-eight million, five hundred twelve thousand, four hundred fifty-two".