21136480501 has 8 divisors (see below), whose sum is σ = 21164951808. Its totient is φ = 21108030000.

The previous prime is 21136480483. The next prime is 21136480577. The reversal of 21136480501 is 10508463112.

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 21136480501 - 2⁷ = 21136480373 is a prime.

It is a super-2 number, since 2×21136480501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21136480601) 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, 3223176 + ... + 3229726.

It is an arithmetic number, because the mean of its divisors is an integer number (2645618976).

Almost surely, 2^21136480501 is an apocalyptic number.

It is an amenable number.

21136480501 is a deficient number, since it is larger than the sum of its proper divisors (28471307).

21136480501 is a wasteful number, since it uses less digits than its factorization.

21136480501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10403.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 21136480501 in words is "twenty-one billion, one hundred thirty-six million, four hundred eighty thousand, five hundred one".