71201442755 has 16 divisors (see below), whose sum is σ = 87549789600. Its totient is φ = 55556547840.

The previous prime is 71201442749. The next prime is 71201442761. The reversal of 71201442755 is 55724410217.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71201442749) and next prime (71201442761).

It is a de Polignac number, because none of the positive numbers 2^k-71201442755 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728741 + ... + 820649.

It is an arithmetic number, because the mean of its divisors is an integer number (5471861850).

Almost surely, 2^71201442755 is an apocalyptic number.

71201442755 is a deficient number, since it is larger than the sum of its proper divisors (16348346845).

71201442755 is a wasteful number, since it uses less digits than its factorization.

71201442755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95734.

The product of its (nonzero) digits is 78400, while the sum is 38.

The spelling of 71201442755 in words is "seventy-one billion, two hundred one million, four hundred forty-two thousand, seven hundred fifty-five".