20615350054 has 16 divisors (see below), whose sum is σ = 33645040128. Its totient is φ = 9416685312.

The previous prime is 20615350027. The next prime is 20615350109. The reversal of 20615350054 is 45005351602.

It is a junction number, because it is equal to n+sod(n) for n = 20615349998 and 20615350025.

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, 4084582 + ... + 4089625.

It is an arithmetic number, because the mean of its divisors is an integer number (2102815008).

Almost surely, 2^20615350054 is an apocalyptic number.

20615350054 is a deficient number, since it is larger than the sum of its proper divisors (13029690074).

20615350054 is a wasteful number, since it uses less digits than its factorization.

20615350054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174319.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 20615350054 in words is "twenty billion, six hundred fifteen million, three hundred fifty thousand, fifty-four".