21035076161 has 8 divisors (see below), whose sum is σ = 23088139104. Its totient is φ = 19005477120.

The previous prime is 21035076143. The next prime is 21035076233. The reversal of 21035076161 is 16167053012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21035076161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21035076061) 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, 5864096 + ... + 5867681.

It is an arithmetic number, because the mean of its divisors is an integer number (2886017388).

Almost surely, 2^21035076161 is an apocalyptic number.

It is an amenable number.

21035076161 is a deficient number, since it is larger than the sum of its proper divisors (2053062943).

21035076161 is a wasteful number, since it uses less digits than its factorization.

21035076161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11731951.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 21035076161 in words is "twenty-one billion, thirty-five million, seventy-six thousand, one hundred sixty-one".