90818164507 has 8 divisors (see below), whose sum is σ = 109897610976. Its totient is φ = 73265073792.

The previous prime is 90818164487. The next prime is 90818164511. The reversal of 90818164507 is 70546181809.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90818164507 - 2⁷ = 90818164379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90818164007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381588808 + ... + 381589045.

It is an arithmetic number, because the mean of its divisors is an integer number (13737201372).

Almost surely, 2^90818164507 is an apocalyptic number.

90818164507 is a deficient number, since it is larger than the sum of its proper divisors (19079446469).

90818164507 is a wasteful number, since it uses less digits than its factorization.

90818164507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763177877.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 90818164507 in words is "ninety billion, eight hundred eighteen million, one hundred sixty-four thousand, five hundred seven".