16291275390 has 64 divisors (see below), whose sum is σ = 46785211200. Its totient is φ = 4010159232.

The previous prime is 16291275379. The next prime is 16291275397. The reversal of 16291275390 is 9357219261.

It is a happy number.

16291275390 is a `hidden beast` number, since 1 + 6 + 2 + 91 + 27 + 539 + 0 = 666.

16291275390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16291275397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2317185 + ... + 2324204.

It is an arithmetic number, because the mean of its divisors is an integer number (731018925).

Almost surely, 2^16291275390 is an apocalyptic number.

16291275390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16291275390 is an abundant number, since it is smaller than the sum of its proper divisors (30493935810).

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

16291275390 is a wasteful number, since it uses less digits than its factorization.

16291275390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641418 (or 4641412 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 16291275390 in words is "sixteen billion, two hundred ninety-one million, two hundred seventy-five thousand, three hundred ninety".