21088395615130 has 16 divisors (see below), whose sum is σ = 37959263933184. Its totient is φ = 8435324506960.

The previous prime is 21088395615107. The next prime is 21088395615149. The reversal of 21088395615130 is 3151659388012.

It is a happy number.

It is a super-2 number, since 2×21088395615130² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1509406 + ... + 6667465.

It is an arithmetic number, because the mean of its divisors is an integer number (2372453995824).

Almost surely, 2^{21088395615130} is an apocalyptic number.

21088395615130 is a deficient number, since it is larger than the sum of its proper divisors (16870868318054).

21088395615130 is a wasteful number, since it uses less digits than its factorization.

21088395615130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434781.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 21088395615130 in words is "twenty-one trillion, eighty-eight billion, three hundred ninety-five million, six hundred fifteen thousand, one hundred thirty".