21160336455436 has 6 divisors (see below), whose sum is σ = 37030588797020. Its totient is φ = 10580168227716.

The previous prime is 21160336455413. The next prime is 21160336455449. The reversal of 21160336455436 is 63455463306112.

It is a self number, because there is not a number n which added to its sum of digits gives 21160336455436.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2645042056926 + ... + 2645042056933.

Almost surely, 2^{21160336455436} is an apocalyptic number.

It is an amenable number.

21160336455436 is a deficient number, since it is larger than the sum of its proper divisors (15870252341584).

21160336455436 is a wasteful number, since it uses less digits than its factorization.

21160336455436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290084113863 (or 5290084113861 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 21160336455436 in words is "twenty-one trillion, one hundred sixty billion, three hundred thirty-six million, four hundred fifty-five thousand, four hundred thirty-six".