1164616043531 has 4 divisors (see below), whose sum is σ = 1172033980272. Its totient is φ = 1157198106792.

The previous prime is 1164616043527. The next prime is 1164616043567. The reversal of 1164616043531 is 1353406164611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1164616043531 - 2² = 1164616043527 is a prime.

It is a super-2 number, since 2×1164616043531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1164616043431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3708968135 + ... + 3708968448.

It is an arithmetic number, because the mean of its divisors is an integer number (293008495068).

Almost surely, 2^{1164616043531} is an apocalyptic number.

1164616043531 is a deficient number, since it is larger than the sum of its proper divisors (7417936741).

1164616043531 is an equidigital number, since it uses as much as digits as its factorization.

1164616043531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417936740.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 1164616043531 in words is "one trillion, one hundred sixty-four billion, six hundred sixteen million, forty-three thousand, five hundred thirty-one".