1167989961545 has 16 divisors (see below), whose sum is σ = 1544143711680. Its totient is φ = 841036872000.

The previous prime is 1167989961539. The next prime is 1167989961617. The reversal of 1167989961545 is 5451699897611.

It is not a de Polignac number, because 1167989961545 - 2⁸ = 1167989961289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105124055 + ... + 105135164.

It is an arithmetic number, because the mean of its divisors is an integer number (96508981980).

Almost surely, 2^{1167989961545} is an apocalyptic number.

It is an amenable number.

1167989961545 is a deficient number, since it is larger than the sum of its proper divisors (376153750135).

1167989961545 is a wasteful number, since it uses less digits than its factorization.

1167989961545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210259336.

The product of its digits is 146966400, while the sum is 71.

The spelling of 1167989961545 in words is "one trillion, one hundred sixty-seven billion, nine hundred eighty-nine million, nine hundred sixty-one thousand, five hundred forty-five".