20554455445502 has 64 divisors (see below), whose sum is σ = 34699683363840. Its totient is φ = 9051464822400.

The previous prime is 20554455445453. The next prime is 20554455445541.

20554455445502 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20554455445502² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 53584124 + ... + 53966352.

It is an arithmetic number, because the mean of its divisors is an integer number (542182552560).

Almost surely, 2^{20554455445502} is an apocalyptic number.

20554455445502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20554455445502 is a deficient number, since it is larger than the sum of its proper divisors (14145227918338).

20554455445502 is a wasteful number, since it uses less digits than its factorization.

20554455445502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382817.

The product of its (nonzero) digits is 16000000, while the sum is 50.

The spelling of 20554455445502 in words is "twenty trillion, five hundred fifty-four billion, four hundred fifty-five million, four hundred forty-five thousand, five hundred two".