18109704147696 has 160 divisors (see below), whose sum is σ = 60140921766400. Its totient is φ = 5174201115072.

The previous prime is 18109704147637. The next prime is 18109704147709. The reversal of 18109704147696 is 69674140790181.

18109704147696 is a `hidden beast` number, since 1 + 8 + 1 + 0 + 9 + 70 + 4 + 1 + 476 + 96 = 666.

It is a super-2 number, since 2×18109704147696² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36722086 + ... + 37211973.

It is an arithmetic number, because the mean of its divisors is an integer number (375880761040).

Almost surely, 2^{18109704147696} is an apocalyptic number.

18109704147696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18109704147696 is an abundant number, since it is smaller than the sum of its proper divisors (42031217618704).

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

18109704147696 is an frugal number, since it uses more digits than its factorization.

18109704147696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73934095 (or 73934071 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 18109704147696 in words is "eighteen trillion, one hundred nine billion, seven hundred four million, one hundred forty-seven thousand, six hundred ninety-six".