64161910075 has 48 divisors (see below), whose sum is σ = 81594643680. Its totient is φ = 50037765120.

The previous prime is 64161910067. The next prime is 64161910091. The reversal of 64161910075 is 57001916146.

It is not a de Polignac number, because 64161910075 - 2³ = 64161910067 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64354477 + ... + 64355473.

It is an arithmetic number, because the mean of its divisors is an integer number (1699888410).

Almost surely, 2^64161910075 is an apocalyptic number.

64161910075 is a deficient number, since it is larger than the sum of its proper divisors (17432733605).

64161910075 is a wasteful number, since it uses less digits than its factorization.

64161910075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 64161910075 in words is "sixty-four billion, one hundred sixty-one million, nine hundred ten thousand, seventy-five".