21190158465005 has 16 divisors (see below), whose sum is σ = 25676653716480. Its totient is φ = 16786504758528.

The previous prime is 21190158464947. The next prime is 21190158465031. The reversal of 21190158465005 is 50056485109112.

It is a cyclic number.

It is not a de Polignac number, because 21190158465005 - 2⁶ = 21190158464941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7116356 + ... + 9644834.

It is an arithmetic number, because the mean of its divisors is an integer number (1604790857280).

Almost surely, 2^{21190158465005} is an apocalyptic number.

It is an amenable number.

21190158465005 is a deficient number, since it is larger than the sum of its proper divisors (4486495251475).

21190158465005 is a wasteful number, since it uses less digits than its factorization.

21190158465005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544860.

The product of its (nonzero) digits is 432000, while the sum is 47.

The spelling of 21190158465005 in words is "twenty-one trillion, one hundred ninety billion, one hundred fifty-eight million, four hundred sixty-five thousand, five".