1180156186946 has 16 divisors (see below), whose sum is σ = 1958364174528. Its totient is φ = 528879212400.

The previous prime is 1180156186921. The next prime is 1180156186961. The reversal of 1180156186946 is 6496816510811.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1180156186891 and 1180156186900.

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, 377769305 + ... + 377772428.

It is an arithmetic number, because the mean of its divisors is an integer number (122397760908).

Almost surely, 2^{1180156186946} is an apocalyptic number.

1180156186946 is a deficient number, since it is larger than the sum of its proper divisors (778207987582).

1180156186946 is a wasteful number, since it uses less digits than its factorization.

1180156186946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755541817.

The product of its (nonzero) digits is 2488320, while the sum is 56.

The spelling of 1180156186946 in words is "one trillion, one hundred eighty billion, one hundred fifty-six million, one hundred eighty-six thousand, nine hundred forty-six".