20102860867533 has 4 divisors (see below), whose sum is σ = 26803814490048. Its totient is φ = 13401907245020.

The previous prime is 20102860867459. The next prime is 20102860867559. The reversal of 20102860867533 is 33576806820102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20102860867533 - 2³⁸ = 19827982960589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102860867933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350476811253 + ... + 3350476811258.

It is an arithmetic number, because the mean of its divisors is an integer number (6700953622512).

Almost surely, 2^{20102860867533} is an apocalyptic number.

It is an amenable number.

20102860867533 is a deficient number, since it is larger than the sum of its proper divisors (6700953622515).

20102860867533 is an equidigital number, since it uses as much as digits as its factorization.

20102860867533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700953622514.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 20102860867533 in words is "twenty trillion, one hundred two billion, eight hundred sixty million, eight hundred sixty-seven thousand, five hundred thirty-three".