499890225156 has 48 divisors (see below), whose sum is σ = 1365553795200. Its totient is φ = 139342222080.

The previous prime is 499890225073. The next prime is 499890225157. The reversal of 499890225156 is 651522098994.

It is a self number, because there is not a number n which added to its sum of digits gives 499890225156.

It is not an unprimeable number, because it can be changed into a prime (499890225157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72570631 + ... + 72577518.

It is an arithmetic number, because the mean of its divisors is an integer number (28449037400).

Almost surely, 2^499890225156 is an apocalyptic number.

It is an amenable number.

499890225156 is an abundant number, since it is smaller than the sum of its proper divisors (865663570044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499890225156 is a wasteful number, since it uses less digits than its factorization.

499890225156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145148204 (or 145148202 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 60.

The spelling of 499890225156 in words is "four hundred ninety-nine billion, eight hundred ninety million, two hundred twenty-five thousand, one hundred fifty-six".