20477361232 has 10 divisors (see below), whose sum is σ = 39674887418. Its totient is φ = 10238680608.

The previous prime is 20477361217. The next prime is 20477361263. The reversal of 20477361232 is 23216377402.

It can be written as a sum of positive squares in only one way, i.e., 20284595776 + 192765456 = 142424^2 + 13884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20477361191 and 20477361200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639917523 + ... + 639917554.

Almost surely, 2^20477361232 is an apocalyptic number.

It is an amenable number.

20477361232 is a deficient number, since it is larger than the sum of its proper divisors (19197526186).

20477361232 is a wasteful number, since it uses less digits than its factorization.

20477361232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279835085 (or 1279835079 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 20477361232 in words is "twenty billion, four hundred seventy-seven million, three hundred sixty-one thousand, two hundred thirty-two".