90206709622 has 8 divisors (see below), whose sum is σ = 135906144696. Its totient is φ = 44904661392.

The previous prime is 90206709589. The next prime is 90206709653. The reversal of 90206709622 is 22690760209.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99346143 + ... + 99347050.

It is an arithmetic number, because the mean of its divisors is an integer number (16988268087).

Almost surely, 2^90206709622 is an apocalyptic number.

90206709622 is a deficient number, since it is larger than the sum of its proper divisors (45699435074).

90206709622 is a wasteful number, since it uses less digits than its factorization.

90206709622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198693422.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 90206709622 in words is "ninety billion, two hundred six million, seven hundred nine thousand, six hundred twenty-two".