81060710553 has 48 divisors (see below), whose sum is σ = 127911813120. Its totient is φ = 51157475856.

The previous prime is 81060710531. The next prime is 81060710587. The reversal of 81060710553 is 35501706018.

It is not a de Polignac number, because 81060710553 - 2⁹ = 81060710041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81060710453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6859576 + ... + 6871382.

It is an arithmetic number, because the mean of its divisors is an integer number (2664829440).

Almost surely, 2^81060710553 is an apocalyptic number.

It is an amenable number.

81060710553 is a deficient number, since it is larger than the sum of its proper divisors (46851102567).

81060710553 is a wasteful number, since it uses less digits than its factorization.

81060710553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13328 (or 13316 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 81060710553 in words is "eighty-one billion, sixty million, seven hundred ten thousand, five hundred fifty-three".