1180145623538 has 12 divisors (see below), whose sum is σ = 2059233690222. Its totient is φ = 505776695760.

The previous prime is 1180145623513. The next prime is 1180145623607. The reversal of 1180145623538 is 8353265410811.

It can be written as a sum of positive squares in only one way, i.e., 1174022091529 + 6123532009 = 1083523^2 + 78253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1180145623492 and 1180145623501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6021151043 + ... + 6021151238.

Almost surely, 2^{1180145623538} is an apocalyptic number.

1180145623538 is a deficient number, since it is larger than the sum of its proper divisors (879088066684).

1180145623538 is a wasteful number, since it uses less digits than its factorization.

1180145623538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12042302297 (or 12042302290 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 1180145623538 in words is "one trillion, one hundred eighty billion, one hundred forty-five million, six hundred twenty-three thousand, five hundred thirty-eight".