1161033578616 has 32 divisors (see below), whose sum is σ = 2905254282240. Its totient is φ = 386655148128.

The previous prime is 1161033578611. The next prime is 1161033578623. The reversal of 1161033578616 is 6168753301611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161033578611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22226166 + ... + 22278341.

It is an arithmetic number, because the mean of its divisors is an integer number (90789196320).

Almost surely, 2^{1161033578616} is an apocalyptic number.

It is an amenable number.

1161033578616 is an abundant number, since it is smaller than the sum of its proper divisors (1744220703624).

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

1161033578616 is a wasteful number, since it uses less digits than its factorization.

1161033578616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44505603 (or 44505599 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 1161033578616 in words is "one trillion, one hundred sixty-one billion, thirty-three million, five hundred seventy-eight thousand, six hundred sixteen".