81616051202714 has 16 divisors (see below), whose sum is σ = 139914806540928. Its totient is φ = 34977913681392.

The previous prime is 81616051202687. The next prime is 81616051202729. The reversal of 81616051202714 is 41720215061618.

It is a super-2 number, since 2×81616051202714² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31542317 + ... + 34031600.

It is an arithmetic number, because the mean of its divisors is an integer number (8744675408808).

Almost surely, 2^{81616051202714} is an apocalyptic number.

81616051202714 is a deficient number, since it is larger than the sum of its proper divisors (58298755338214).

81616051202714 is a wasteful number, since it uses less digits than its factorization.

81616051202714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65662829.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 81616051202714 in words is "eighty-one trillion, six hundred sixteen billion, fifty-one million, two hundred two thousand, seven hundred fourteen".