111395644065 has 160 divisors (see below), whose sum is σ = 226774753920. Its totient is φ = 51970553856.

The previous prime is 111395644049. The next prime is 111395644091. The reversal of 111395644065 is 560446593111.

111395644065 is a `hidden beast` number, since 1 + 11 + 39 + 564 + 40 + 6 + 5 = 666.

It is not a de Polignac number, because 111395644065 - 2⁴ = 111395644049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 111395644065.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6925162 + ... + 6941228.

It is an arithmetic number, because the mean of its divisors is an integer number (1417342212).

Almost surely, 2^111395644065 is an apocalyptic number.

111395644065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111395644065 is an abundant number, since it is smaller than the sum of its proper divisors (115379109855).

111395644065 is a wasteful number, since it uses less digits than its factorization.

111395644065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16173 (or 16164 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 111395644065 in words is "one hundred eleven billion, three hundred ninety-five million, six hundred forty-four thousand, sixty-five".