1164432411621 has 96 divisors (see below), whose sum is σ = 1819710966528. Its totient is φ = 714926684160.

The previous prime is 1164432411559. The next prime is 1164432411719. The reversal of 1164432411621 is 1261142344611.

1164432411621 is a `hidden beast` number, since 1 + 1 + 6 + 4 + 4 + 3 + 24 + 1 + 1 + 621 = 666.

It is not a de Polignac number, because 1164432411621 - 2¹⁴ = 1164432395237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164432511621) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 465213456 + ... + 465215958.

It is an arithmetic number, because the mean of its divisors is an integer number (18955322568).

Almost surely, 2^{1164432411621} is an apocalyptic number.

It is an amenable number.

1164432411621 is a deficient number, since it is larger than the sum of its proper divisors (655278554907).

1164432411621 is a wasteful number, since it uses less digits than its factorization.

1164432411621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971 (or 2968 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The spelling of 1164432411621 in words is "one trillion, one hundred sixty-four billion, four hundred thirty-two million, four hundred eleven thousand, six hundred twenty-one".