16127556390 has 144 divisors (see below), whose sum is σ = 46723832064. Its totient is φ = 3855962880.

The previous prime is 16127556349. The next prime is 16127556409. The reversal of 16127556390 is 9365572161.

16127556390 is a `hidden beast` number, since 1 + 6 + 1 + 2 + 7 + 5 + 5 + 639 + 0 = 666.

It is a super-2 number, since 2×16127556390² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 784827 + ... + 805113.

It is an arithmetic number, because the mean of its divisors is an integer number (324471056).

Almost surely, 2^16127556390 is an apocalyptic number.

16127556390 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 16127556390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23361916032).

16127556390 is an abundant number, since it is smaller than the sum of its proper divisors (30596275674).

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

16127556390 is a wasteful number, since it uses less digits than its factorization.

16127556390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20395 (or 20381 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 16127556390 in words is "sixteen billion, one hundred twenty-seven million, five hundred fifty-six thousand, three hundred ninety".