20677341450 has 48 divisors (see below), whose sum is σ = 51347829600. Its totient is φ = 5506643520.

The previous prime is 20677341437. The next prime is 20677341473. The reversal of 20677341450 is 5414377602.

It is a junction number, because it is equal to n+sod(n) for n = 20677341399 and 20677341408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22501 + ... + 204599.

It is an arithmetic number, because the mean of its divisors is an integer number (1069746450).

Almost surely, 2^20677341450 is an apocalyptic number.

20677341450 is an abundant number, since it is smaller than the sum of its proper divisors (30670488150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20677341450 is a wasteful number, since it uses less digits than its factorization.

20677341450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182871 (or 182866 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 20677341450 in words is "twenty billion, six hundred seventy-seven million, three hundred forty-one thousand, four hundred fifty".