90432162521 has 8 divisors (see below), whose sum is σ = 92539665504. Its totient is φ = 88324860960.

The previous prime is 90432162437. The next prime is 90432162571. The reversal of 90432162521 is 12526123409.

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 90432162521 - 2¹⁰ = 90432161497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90432162571) 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, 1236701 + ... + 1307781.

It is an arithmetic number, because the mean of its divisors is an integer number (11567458188).

Almost surely, 2^90432162521 is an apocalyptic number.

It is an amenable number.

90432162521 is a deficient number, since it is larger than the sum of its proper divisors (2107502983).

90432162521 is a wasteful number, since it uses less digits than its factorization.

90432162521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100711.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 90432162521 in words is "ninety billion, four hundred thirty-two million, one hundred sixty-two thousand, five hundred twenty-one".