20455016154644 has 24 divisors (see below), whose sum is σ = 36630586452768. Its totient is φ = 9989158163040.

The previous prime is 20455016154611. The next prime is 20455016154673. The reversal of 20455016154644 is 44645161055402.

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, 470414 + ... + 6413370.

It is an arithmetic number, because the mean of its divisors is an integer number (1526274435532).

Almost surely, 2^{20455016154644} is an apocalyptic number.

It is an amenable number.

20455016154644 is a deficient number, since it is larger than the sum of its proper divisors (16175570298124).

20455016154644 is a wasteful number, since it uses less digits than its factorization.

20455016154644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5963015 (or 5963013 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 47.

The spelling of 20455016154644 in words is "twenty trillion, four hundred fifty-five billion, sixteen million, one hundred fifty-four thousand, six hundred forty-four".