1163639355378 has 16 divisors (see below), whose sum is σ = 2327291557536. Its totient is φ = 387877644000.

The previous prime is 1163639355349. The next prime is 1163639355449. The reversal of 1163639355378 is 8735539363611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966225 + ... + 1805787.

It is an arithmetic number, because the mean of its divisors is an integer number (145455722346).

Almost surely, 2^{1163639355378} is an apocalyptic number.

1163639355378 is an abundant number, since it is smaller than the sum of its proper divisors (1163652202158).

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

1163639355378 is a wasteful number, since it uses less digits than its factorization.

1163639355378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070569.

The product of its digits is 36741600, while the sum is 60.

The spelling of 1163639355378 in words is "one trillion, one hundred sixty-three billion, six hundred thirty-nine million, three hundred fifty-five thousand, three hundred seventy-eight".