16626472590 has 256 divisors, whose sum is σ = 50436255744. Its totient is φ = 3414528000.

The previous prime is 16626472571. The next prime is 16626472619. The reversal of 16626472590 is 9527462661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21847810 + ... + 21848570.

It is an arithmetic number, because the mean of its divisors is an integer number (197016624).

Almost surely, 2^16626472590 is an apocalyptic number.

16626472590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16626472590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25218127872).

16626472590 is an abundant number, since it is smaller than the sum of its proper divisors (33809783154).

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

16626472590 is a wasteful number, since it uses less digits than its factorization.

16626472590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 16626472590 in words is "sixteen billion, six hundred twenty-six million, four hundred seventy-two thousand, five hundred ninety".