109609299546916 has 81 divisors (see below), whose sum is σ = 213491403906291. Its totient is φ = 49217116912704.

The previous prime is 109609299546889. The next prime is 109609299546919. The reversal of 109609299546916 is 619645992906901.

The square root of 109609299546916 is 10469446.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 455282164516 + 109154017382400 = 674746^2 + 10447680^2 .

It is a super-2 number, since 2×109609299546916² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109609299546919) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10071601611 + ... + 10071612493.

Almost surely, 2^{109609299546916} is an apocalyptic number.

109609299546916 is the 10469446-th square number.

It is an amenable number.

109609299546916 is a deficient number, since it is larger than the sum of its proper divisors (103882104359375).

109609299546916 is an frugal number, since it uses more digits than its factorization.

109609299546916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870 (or 10935 counting only the distinct ones).

The product of its (nonzero) digits is 510183360, while the sum is 76.

The spelling of 109609299546916 in words is "one hundred nine trillion, six hundred nine billion, two hundred ninety-nine million, five hundred forty-six thousand, nine hundred sixteen".