109215511602146 has 16 divisors (see below), whose sum is σ = 170570087300088. Its totient is φ = 52402484572800.

The previous prime is 109215511602101. The next prime is 109215511602149. The reversal of 109215511602146 is 641206115512901.

It can be written as a sum of positive squares in 4 ways, for example, as 51768586211521 + 57446925390625 = 7195039^2 + 7579375^2 .

It is a junction number, because it is equal to n+sod(n) for n = 109215511602097 and 109215511602106.

It is not an unprimeable number, because it can be changed into a prime (109215511602149) 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, 10917179285 + ... + 10917189288.

Almost surely, 2^{109215511602146} is an apocalyptic number.

109215511602146 is a deficient number, since it is larger than the sum of its proper divisors (61354575697942).

109215511602146 is a wasteful number, since it uses less digits than its factorization.

109215511602146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21834368677.

The product of its (nonzero) digits is 129600, while the sum is 44.

The spelling of 109215511602146 in words is "one hundred nine trillion, two hundred fifteen billion, five hundred eleven million, six hundred two thousand, one hundred forty-six".