20413206640654 has 8 divisors (see below), whose sum is σ = 31121774058888. Its totient is φ = 10039281954360.

The previous prime is 20413206640649. The next prime is 20413206640667. The reversal of 20413206640654 is 45604660231402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20413206640654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83660682832 + ... + 83660683075.

It is an arithmetic number, because the mean of its divisors is an integer number (3890221757361).

Almost surely, 2^{20413206640654} is an apocalyptic number.

20413206640654 is a deficient number, since it is larger than the sum of its proper divisors (10708567418234).

20413206640654 is a wasteful number, since it uses less digits than its factorization.

20413206640654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167321365970.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 20413206640654 in words is "twenty trillion, four hundred thirteen billion, two hundred six million, six hundred forty thousand, six hundred fifty-four".