5161721102 has 8 divisors (see below), whose sum is σ = 7744204776. Its totient is φ = 2580319512.

The previous prime is 5161721099. The next prime is 5161721137. The reversal of 5161721102 is 2011271615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 258488 + ... + 277739.

It is an arithmetic number, because the mean of its divisors is an integer number (968025597).

Almost surely, 2^5161721102 is an apocalyptic number.

5161721102 is a deficient number, since it is larger than the sum of its proper divisors (2582483674).

5161721102 is a wasteful number, since it uses less digits than its factorization.

5161721102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541042.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 5161721102 is about 71845.1188460288. The cubic root of 5161721102 is about 1728.2166239254.

Adding to 5161721102 its reverse (2011271615), we get a palindrome (7172992717).

The spelling of 5161721102 in words is "five billion, one hundred sixty-one million, seven hundred twenty-one thousand, one hundred two".