20455622655402 has 64 divisors (see below), whose sum is σ = 47272967280000. Its totient is φ = 5831922554880.

The previous prime is 20455622655383. The next prime is 20455622655421.

20455622655402 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (20455622655383) and next prime (20455622655421).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231627 + ... + 6400382.

It is an arithmetic number, because the mean of its divisors is an integer number (738640113750).

Almost surely, 2^{20455622655402} is an apocalyptic number.

20455622655402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20455622655402 is an abundant number, since it is smaller than the sum of its proper divisors (26817344624598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20455622655402 is a wasteful number, since it uses less digits than its factorization.

20455622655402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6634791.

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 20455622655402 in words is "twenty trillion, four hundred fifty-five billion, six hundred twenty-two million, six hundred fifty-five thousand, four hundred two".