17155342020 has 24 divisors (see below), whose sum is σ = 48034957824. Its totient is φ = 4574757856.

The previous prime is 17155342007. The next prime is 17155342037. The reversal of 17155342020 is 2024355171.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142961124 + ... + 142961243.

It is an arithmetic number, because the mean of its divisors is an integer number (2001456576).

Almost surely, 2^17155342020 is an apocalyptic number.

17155342020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17155342020 is an abundant number, since it is smaller than the sum of its proper divisors (30879615804).

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

17155342020 is a wasteful number, since it uses less digits than its factorization.

17155342020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285922379 (or 285922377 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

Adding to 17155342020 its reverse (2024355171), we get a palindrome (19179697191).

The spelling of 17155342020 in words is "seventeen billion, one hundred fifty-five million, three hundred forty-two thousand, twenty".