66540150101105 has 64 divisors (see below), whose sum is σ = 84594213623808. Its totient is φ = 50187725660160.

The previous prime is 66540150101057. The next prime is 66540150101141. The reversal of 66540150101105 is 50110105104566.

It is a happy number.

It is not a de Polignac number, because 66540150101105 - 2³⁸ = 66265272194161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 330538592 + ... + 330739838.

It is an arithmetic number, because the mean of its divisors is an integer number (1321784587872).

Almost surely, 2^{66540150101105} is an apocalyptic number.

It is an amenable number.

66540150101105 is a deficient number, since it is larger than the sum of its proper divisors (18054063522703).

66540150101105 is a wasteful number, since it uses less digits than its factorization.

66540150101105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201786.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 66540150101105 in words is "sixty-six trillion, five hundred forty billion, one hundred fifty million, one hundred one thousand, one hundred five".