90535681996 has 6 divisors (see below), whose sum is σ = 158437443500. Its totient is φ = 45267840996.

The previous prime is 90535681987. The next prime is 90535682009. The reversal of 90535681996 is 69918653509.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11316960246 + ... + 11316960253.

Almost surely, 2^90535681996 is an apocalyptic number.

It is an amenable number.

90535681996 is a deficient number, since it is larger than the sum of its proper divisors (67901761504).

90535681996 is a wasteful number, since it uses less digits than its factorization.

90535681996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22633920503 (or 22633920501 counting only the distinct ones).

The product of its (nonzero) digits is 15746400, while the sum is 61.

The spelling of 90535681996 in words is "ninety billion, five hundred thirty-five million, six hundred eighty-one thousand, nine hundred ninety-six".