75021646106 has 16 divisors (see below), whose sum is σ = 126995891040. Its totient is φ = 32924860080.

The previous prime is 75021646103. The next prime is 75021646151. The reversal of 75021646106 is 60164612057.

It is a self number, because there is not a number n which added to its sum of digits gives 75021646106.

It is not an unprimeable number, because it can be changed into a prime (75021646103) 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, 58793756 + ... + 58795031.

It is an arithmetic number, because the mean of its divisors is an integer number (7937243190).

Almost surely, 2^75021646106 is an apocalyptic number.

75021646106 is a deficient number, since it is larger than the sum of its proper divisors (51974244934).

75021646106 is a wasteful number, since it uses less digits than its factorization.

75021646106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117588829.

The product of its (nonzero) digits is 60480, while the sum is 38.

It can be divided in two parts, 75021 and 646106, that added together give a palindrome (721127).

The spelling of 75021646106 in words is "seventy-five billion, twenty-one million, six hundred forty-six thousand, one hundred six".