15982550900 has 36 divisors (see below), whose sum is σ = 34858229868. Its totient is φ = 6360560640.

The previous prime is 15982550897. The next prime is 15982550911. The reversal of 15982550900 is 905528951.

It can be written as a sum of positive squares in 6 ways, for example, as 217739536 + 15764811364 = 14756^2 + 125558^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385949 + ... + 425348.

It is an arithmetic number, because the mean of its divisors is an integer number (968284163).

Almost surely, 2^15982550900 is an apocalyptic number.

15982550900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15982550900 is an abundant number, since it is smaller than the sum of its proper divisors (18875678968).

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

15982550900 is a wasteful number, since it uses less digits than its factorization.

15982550900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811508 (or 811501 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 15982550900 in words is "fifteen billion, nine hundred eighty-two million, five hundred fifty thousand, nine hundred".