20323645654 has 16 divisors (see below), whose sum is σ = 32833644480. Its totient is φ = 9379247040.

The previous prime is 20323645637. The next prime is 20323645679. The reversal of 20323645654 is 45654632302.

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, 295699 + ... + 357889.

It is an arithmetic number, because the mean of its divisors is an integer number (2052102780).

Almost surely, 2^20323645654 is an apocalyptic number.

20323645654 is a deficient number, since it is larger than the sum of its proper divisors (12509998826).

20323645654 is a wasteful number, since it uses less digits than its factorization.

20323645654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74775.

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 20323645654 in words is "twenty billion, three hundred twenty-three million, six hundred forty-five thousand, six hundred fifty-four".