20155241402 has 16 divisors (see below), whose sum is σ = 30660028800. Its totient is φ = 9935602560.

The previous prime is 20155241383. The next prime is 20155241419. The reversal of 20155241402 is 20414255102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16874 + ... + 201482.

It is an arithmetic number, because the mean of its divisors is an integer number (1916251800).

Almost surely, 2^20155241402 is an apocalyptic number.

20155241402 is a deficient number, since it is larger than the sum of its proper divisors (10504787398).

20155241402 is a wasteful number, since it uses less digits than its factorization.

20155241402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185381.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 20155241402 its reverse (20414255102), we get a palindrome (40569496504).

The spelling of 20155241402 in words is "twenty billion, one hundred fifty-five million, two hundred forty-one thousand, four hundred two".