21016151708 has 24 divisors (see below), whose sum is σ = 37722065472. Its totient is φ = 10240338944.

The previous prime is 21016151669. The next prime is 21016151711. The reversal of 21016151708 is 80715161012.

It is a super-2 number, since 2×21016151708² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196085 + ... + 283692.

It is an arithmetic number, because the mean of its divisors is an integer number (1571752728).

Almost surely, 2^21016151708 is an apocalyptic number.

It is an amenable number.

21016151708 is a deficient number, since it is larger than the sum of its proper divisors (16705913764).

21016151708 is a wasteful number, since it uses less digits than its factorization.

21016151708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480061 (or 480059 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 32.

The spelling of 21016151708 in words is "twenty-one billion, sixteen million, one hundred fifty-one thousand, seven hundred eight".