51662164103 has 16 divisors (see below), whose sum is σ = 58679806752. Its totient is φ = 45068928000.

The previous prime is 51662164069. The next prime is 51662164121. The reversal of 51662164103 is 30146126615.

It is a cyclic number.

It is not a de Polignac number, because 51662164103 - 2¹⁸ = 51661901959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51662164123) 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, 911426 + ... + 966447.

It is an arithmetic number, because the mean of its divisors is an integer number (3667487922).

Almost surely, 2^51662164103 is an apocalyptic number.

51662164103 is a deficient number, since it is larger than the sum of its proper divisors (7017642649).

51662164103 is a wasteful number, since it uses less digits than its factorization.

51662164103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877986.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 51662164103 in words is "fifty-one billion, six hundred sixty-two million, one hundred sixty-four thousand, one hundred three".