1095664399776 has 72 divisors (see below), whose sum is σ = 3216305199744. Its totient is φ = 353440126080.

The previous prime is 1095664399751. The next prime is 1095664399787. The reversal of 1095664399776 is 6779934665901.

1095664399776 is a `hidden beast` number, since 10 + 9 + 566 + 43 + 9 + 9 + 7 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61352206 + ... + 61370061.

It is an arithmetic number, because the mean of its divisors is an integer number (44670905552).

Almost surely, 2^{1095664399776} is an apocalyptic number.

1095664399776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1095664399776 is an abundant number, since it is smaller than the sum of its proper divisors (2120640799968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1095664399776 is a wasteful number, since it uses less digits than its factorization.

1095664399776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122722314 (or 122722303 counting only the distinct ones).

The product of its (nonzero) digits is 462944160, while the sum is 72.

The spelling of 1095664399776 in words is "one trillion, ninety-five billion, six hundred sixty-four million, three hundred ninety-nine thousand, seven hundred seventy-six".