90690020024 has 8 divisors (see below), whose sum is σ = 170043787560. Its totient is φ = 45345010008.

The previous prime is 90690019991. The next prime is 90690020077. The reversal of 90690020024 is 42002009609.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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, 5668126244 + ... + 5668126259.

It is an arithmetic number, because the mean of its divisors is an integer number (21255473445).

Almost surely, 2^90690020024 is an apocalyptic number.

It is an amenable number.

90690020024 is a deficient number, since it is larger than the sum of its proper divisors (79353767536).

90690020024 is a wasteful number, since it uses less digits than its factorization.

90690020024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11336252509 (or 11336252505 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 90690020024 in words is "ninety billion, six hundred ninety million, twenty thousand, twenty-four".