109993602171545 has 8 divisors (see below), whose sum is σ = 132070102417224. Its totient is φ = 87943028529664.

The previous prime is 109993602171521. The next prime is 109993602171547. The reversal of 109993602171545 is 545171206399901.

It can be written as a sum of positive squares in 4 ways, for example, as 71008800995584 + 38984801175961 = 8426672^2 + 6243781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109993602171545 - 2³⁴ = 109976422302361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109993602171547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6481641614 + ... + 6481658583.

It is an arithmetic number, because the mean of its divisors is an integer number (16508762802153).

Almost surely, 2^{109993602171545} is an apocalyptic number.

It is an amenable number.

109993602171545 is a deficient number, since it is larger than the sum of its proper divisors (22076500245679).

109993602171545 is a wasteful number, since it uses less digits than its factorization.

109993602171545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12963301899.

The product of its (nonzero) digits is 18370800, while the sum is 62.

The spelling of 109993602171545 in words is "one hundred nine trillion, nine hundred ninety-three billion, six hundred two million, one hundred seventy-one thousand, five hundred forty-five".