1161906687628 has 12 divisors (see below), whose sum is σ = 2038563792720. Its totient is φ = 579459889712.

The previous prime is 1161906687619. The next prime is 1161906687631. The reversal of 1161906687628 is 8267866091611.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373361776 + ... + 373364887.

It is an arithmetic number, because the mean of its divisors is an integer number (169880316060).

Almost surely, 2^{1161906687628} is an apocalyptic number.

It is an amenable number.

1161906687628 is a deficient number, since it is larger than the sum of its proper divisors (876657105092).

1161906687628 is a wasteful number, since it uses less digits than its factorization.

1161906687628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746727056 (or 746727054 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 1161906687628 in words is "one trillion, one hundred sixty-one billion, nine hundred six million, six hundred eighty-seven thousand, six hundred twenty-eight".