990501150106 has 8 divisors (see below), whose sum is σ = 1600040319444. Its totient is φ = 457154376960.

The previous prime is 990501150091. The next prime is 990501150109. The reversal of 990501150106 is 601051105099.

It can be written as a sum of positive squares in 2 ways, for example, as 973693324081 + 16807826025 = 986759^2 + 129645^2 .

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

It is a super-2 number, since 2×990501150106² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (990501150109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19048099015 + ... + 19048099066.

Almost surely, 2^990501150106 is an apocalyptic number.

990501150106 is a deficient number, since it is larger than the sum of its proper divisors (609539169338).

990501150106 is a wasteful number, since it uses less digits than its factorization.

990501150106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38096198096.

The product of its (nonzero) digits is 12150, while the sum is 37.

The spelling of 990501150106 in words is "nine hundred ninety billion, five hundred one million, one hundred fifty thousand, one hundred six".