81483513211600 has 60 divisors (see below), whose sum is σ = 195765262703424. Its totient is φ = 32593218444160.

The previous prime is 81483513211561. The next prime is 81483513211621. The reversal of 81483513211600 is 611231538418.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84909657 + ... + 85863943.

Almost surely, 2^{81483513211600} is an apocalyptic number.

81483513211600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

81483513211600 is an abundant number, since it is smaller than the sum of its proper divisors (114281749491824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81483513211600 is a wasteful number, since it uses less digits than its factorization.

81483513211600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167772 (or 1167761 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 81483513211600 in words is "eighty-one trillion, four hundred eighty-three billion, five hundred thirteen million, two hundred eleven thousand, six hundred".