2071171505642 has 8 divisors (see below), whose sum is σ = 3106823977056. Its totient is φ = 1035563513292.

The previous prime is 2071171505629. The next prime is 2071171505659. The reversal of 2071171505642 is 2465051711702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2071171505642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11003108 + ... + 11189759.

It is an arithmetic number, because the mean of its divisors is an integer number (388352997132).

Almost surely, 2^{2071171505642} is an apocalyptic number.

2071171505642 is a deficient number, since it is larger than the sum of its proper divisors (1035652471414).

2071171505642 is a wasteful number, since it uses less digits than its factorization.

2071171505642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22239532.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 2071171505642 in words is "two trillion, seventy-one billion, one hundred seventy-one million, five hundred five thousand, six hundred forty-two".