81030295455 has 16 divisors (see below), whose sum is σ = 129735696384. Its totient is φ = 43187083040.

The previous prime is 81030295441. The next prime is 81030295459. The reversal of 81030295455 is 55459203018.

It is not a de Polignac number, because 81030295455 - 2⁷ = 81030295327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81030295459) 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, 1794111 + ... + 1838720.

It is an arithmetic number, because the mean of its divisors is an integer number (8108481024).

Almost surely, 2^81030295455 is an apocalyptic number.

81030295455 is a deficient number, since it is larger than the sum of its proper divisors (48705400929).

81030295455 is a wasteful number, since it uses less digits than its factorization.

81030295455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634326.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 81030295455 in words is "eighty-one billion, thirty million, two hundred ninety-five thousand, four hundred fifty-five".