610121610501 has 16 divisors (see below), whose sum is σ = 876088343424. Its totient is φ = 375452472384.

The previous prime is 610121610451. The next prime is 610121610503. The reversal of 610121610501 is 105016121016.

It is not a de Polignac number, because 610121610501 - 2¹³ = 610121602309 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610121610503) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2668440 + ... + 2888046.

It is an arithmetic number, because the mean of its divisors is an integer number (54755521464).

Almost surely, 2^610121610501 is an apocalyptic number.

It is an amenable number.

610121610501 is a deficient number, since it is larger than the sum of its proper divisors (265966732923).

610121610501 is a wasteful number, since it uses less digits than its factorization.

610121610501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290860.

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 610121610501 its reverse (105016121016), we get a palindrome (715137731517).

The spelling of 610121610501 in words is "six hundred ten billion, one hundred twenty-one million, six hundred ten thousand, five hundred one".