499921527156 has 192 divisors, whose sum is σ = 1324467486720. Its totient is φ = 145928027520.

The previous prime is 499921527113. The next prime is 499921527173. The reversal of 499921527156 is 651725129994.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 499921527156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144192535 + ... + 144196001.

It is an arithmetic number, because the mean of its divisors is an integer number (6898268160).

Almost surely, 2^499921527156 is an apocalyptic number.

499921527156 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

499921527156 is the 447179-th centered pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499921527156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662233743360).

499921527156 is an abundant number, since it is smaller than the sum of its proper divisors (824545959564).

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

499921527156 is a wasteful number, since it uses less digits than its factorization.

499921527156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434 (or 4432 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 60.

The spelling of 499921527156 in words is "four hundred ninety-nine billion, nine hundred twenty-one million, five hundred twenty-seven thousand, one hundred fifty-six".