1181536920366 has 32 divisors (see below), whose sum is σ = 2578146064128. Its totient is φ = 358007139840.

The previous prime is 1181536920359. The next prime is 1181536920391. The reversal of 1181536920366 is 6630296351811.

It is a congruent 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, 161395 + ... + 1545678.

It is an arithmetic number, because the mean of its divisors is an integer number (80567064504).

Almost surely, 2^{1181536920366} is an apocalyptic number.

1181536920366 is an abundant number, since it is smaller than the sum of its proper divisors (1396609143762).

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

1181536920366 is a wasteful number, since it uses less digits than its factorization.

1181536920366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717576.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 1181536920366 in words is "one trillion, one hundred eighty-one billion, five hundred thirty-six million, nine hundred twenty thousand, three hundred sixty-six".