20477545652 has 24 divisors (see below), whose sum is σ = 36349775616. Its totient is φ = 10092074688.

The previous prime is 20477545643. The next prime is 20477545663. The reversal of 20477545652 is 25654577402.

It is a junction number, because it is equal to n+sod(n) for n = 20477545597 and 20477545606.

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, 453533 + ... + 496635.

It is an arithmetic number, because the mean of its divisors is an integer number (1514573984).

Almost surely, 2^20477545652 is an apocalyptic number.

It is an amenable number.

20477545652 is a deficient number, since it is larger than the sum of its proper divisors (15872229964).

20477545652 is a wasteful number, since it uses less digits than its factorization.

20477545652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44807 (or 44805 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 47.

The spelling of 20477545652 in words is "twenty billion, four hundred seventy-seven million, five hundred forty-five thousand, six hundred fifty-two".