21155325130462 has 8 divisors (see below), whose sum is σ = 31748325057000. Its totient is φ = 10572550111464.

The previous prime is 21155325130439. The next prime is 21155325130487. The reversal of 21155325130462 is 26403152355112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556221712 + ... + 2556229987.

It is an arithmetic number, because the mean of its divisors is an integer number (3968540632125).

Almost surely, 2^{21155325130462} is an apocalyptic number.

21155325130462 is a deficient number, since it is larger than the sum of its proper divisors (10592999926538).

21155325130462 is a wasteful number, since it uses less digits than its factorization.

21155325130462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5112453770.

The product of its (nonzero) digits is 216000, while the sum is 40.

Adding to 21155325130462 its reverse (26403152355112), we get a palindrome (47558477485574).

The spelling of 21155325130462 in words is "twenty-one trillion, one hundred fifty-five billion, three hundred twenty-five million, one hundred thirty thousand, four hundred sixty-two".