21362064501 has 8 divisors (see below), whose sum is σ = 28484527680. Its totient is φ = 14240488832.

The previous prime is 21362064473. The next prime is 21362064511. The reversal of 21362064501 is 10546026312.

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

It is a cyclic number.

It is not a de Polignac number, because 21362064501 - 2¹⁴ = 21362048117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21362064511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163521 + ... + 263558.

It is an arithmetic number, because the mean of its divisors is an integer number (3560565960).

Almost surely, 2^21362064501 is an apocalyptic number.

It is an amenable number.

21362064501 is a deficient number, since it is larger than the sum of its proper divisors (7122463179).

21362064501 is a wasteful number, since it uses less digits than its factorization.

21362064501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443755.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 21362064501 in words is "twenty-one billion, three hundred sixty-two million, sixty-four thousand, five hundred one".