1180156186945 has 8 divisors (see below), whose sum is σ = 1416194965440. Its totient is φ = 944119922160.

The previous prime is 1180156186921. The next prime is 1180156186961. The reversal of 1180156186945 is 5496816510811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1180156186945 - 2¹⁷ = 1180156055873 is a prime.

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, 635580 + ... + 1662610.

It is an arithmetic number, because the mean of its divisors is an integer number (177024370680).

Almost surely, 2^{1180156186945} is an apocalyptic number.

It is an amenable number.

1180156186945 is a deficient number, since it is larger than the sum of its proper divisors (236038778495).

1180156186945 is a wasteful number, since it uses less digits than its factorization.

1180156186945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256855.

The product of its (nonzero) digits is 2073600, while the sum is 55.

The spelling of 1180156186945 in words is "one trillion, one hundred eighty billion, one hundred fifty-six million, one hundred eighty-six thousand, nine hundred forty-five".