21016460834 has 32 divisors (see below), whose sum is σ = 34546435200. Its totient is φ = 9544541440.

The previous prime is 21016460833. The next prime is 21016460873. The reversal of 21016460834 is 43806461012.

It is a junction number, because it is equal to n+sod(n) for n = 21016460794 and 21016460803.

It is not an unprimeable number, because it can be changed into a prime (21016460833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2965307 + ... + 2972385.

It is an arithmetic number, because the mean of its divisors is an integer number (1079576100).

Almost surely, 2^21016460834 is an apocalyptic number.

21016460834 is a deficient number, since it is larger than the sum of its proper divisors (13529974366).

21016460834 is a wasteful number, since it uses less digits than its factorization.

21016460834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10138.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 21016460834 in words is "twenty-one billion, sixteen million, four hundred sixty thousand, eight hundred thirty-four".