20755466824 has 16 divisors (see below), whose sum is σ = 38920607100. Its totient is φ = 10376638272.

The previous prime is 20755466813. The next prime is 20755466833. The reversal of 20755466824 is 42866455702.

It can be written as a sum of positive squares in 2 ways, for example, as 16674556900 + 4080909924 = 129130^2 + 63882^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53347 + ... + 210610.

Almost surely, 2^20755466824 is an apocalyptic number.

It is an amenable number.

20755466824 is a deficient number, since it is larger than the sum of its proper divisors (18165140276).

20755466824 is a wasteful number, since it uses less digits than its factorization.

20755466824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273792 (or 273788 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 49.

The spelling of 20755466824 in words is "twenty billion, seven hundred fifty-five million, four hundred sixty-six thousand, eight hundred twenty-four".