83511223553408 has 64 divisors (see below), whose sum is σ = 190163104703520. Its totient is φ = 35785640816640.

The previous prime is 83511223553399. The next prime is 83511223553473. The reversal of 83511223553408 is 80435532211538.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215228 + ... + 12925508.

Almost surely, 2^{83511223553408} is an apocalyptic number.

It is an amenable number.

83511223553408 is an abundant number, since it is smaller than the sum of its proper divisors (106651881150112).

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

83511223553408 is a wasteful number, since it uses less digits than its factorization.

83511223553408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12717635 (or 12717623 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 83511223553408 in words is "eighty-three trillion, five hundred eleven billion, two hundred twenty-three million, five hundred fifty-three thousand, four hundred eight".