20655100155602 has 32 divisors (see below), whose sum is σ = 36277685296704. Its totient is φ = 8715359808000.

The previous prime is 20655100155559. The next prime is 20655100155607.

20655100155602 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20655100155602² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20655100155607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378243524 + ... + 378298127.

It is an arithmetic number, because the mean of its divisors is an integer number (1133677665522).

Almost surely, 2^{20655100155602} is an apocalyptic number.

20655100155602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20655100155602 is a deficient number, since it is larger than the sum of its proper divisors (15622585141102).

20655100155602 is a wasteful number, since it uses less digits than its factorization.

20655100155602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756541754.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 20655100155602 in words is "twenty trillion, six hundred fifty-five billion, one hundred million, one hundred fifty-five thousand, six hundred two".