71071010272551 has 16 divisors (see below), whose sum is σ = 99825339626240. Its totient is φ = 44852504880960.

The previous prime is 71071010272541. The next prime is 71071010272583. The reversal of 71071010272551 is 15527201017017.

It is not a de Polignac number, because 71071010272551 - 2⁵ = 71071010272519 is a prime.

It is a super-2 number, since 2×71071010272551² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71071010272541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478383070 + ... + 478531611.

It is an arithmetic number, because the mean of its divisors is an integer number (6239083726640).

Almost surely, 2^{71071010272551} is an apocalyptic number.

71071010272551 is a deficient number, since it is larger than the sum of its proper divisors (28754329353689).

71071010272551 is a wasteful number, since it uses less digits than its factorization.

71071010272551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956916006.

The product of its (nonzero) digits is 34300, while the sum is 39.

Adding to 71071010272551 its reverse (15527201017017), we get a palindrome (86598211289568).

The spelling of 71071010272551 in words is "seventy-one trillion, seventy-one billion, ten million, two hundred seventy-two thousand, five hundred fifty-one".