20366724663 has 24 divisors (see below), whose sum is σ = 30976682880. Its totient is φ = 12859151760.

The previous prime is 20366724611. The next prime is 20366724757. The reversal of 20366724663 is 36642766302.

It is not a de Polignac number, because 20366724663 - 2¹² = 20366720567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366724163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583420 + ... + 617342.

It is an arithmetic number, because the mean of its divisors is an integer number (1290695120).

Almost surely, 2^20366724663 is an apocalyptic number.

20366724663 is a deficient number, since it is larger than the sum of its proper divisors (10609958217).

20366724663 is a wasteful number, since it uses less digits than its factorization.

20366724663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37459 (or 37456 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 45.

The spelling of 20366724663 in words is "twenty billion, three hundred sixty-six million, seven hundred twenty-four thousand, six hundred sixty-three".