616661301 has 16 divisors (see below), whose sum is σ = 831852224. Its totient is φ = 406301184.

The previous prime is 616661239. The next prime is 616661317. The reversal of 616661301 is 103166616.

It is not a de Polignac number, because 616661301 - 2⁷ = 616661173 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 (617661301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352110 + ... + 353856.

It is an arithmetic number, because the mean of its divisors is an integer number (51990764).

Almost surely, 2^616661301 is an apocalyptic number.

It is an amenable number.

616661301 is a deficient number, since it is larger than the sum of its proper divisors (215190923).

616661301 is a wasteful number, since it uses less digits than its factorization.

616661301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 616661301 is about 24832.6660066937. Note that the first 3 decimals coincide. The cubic root of 616661301 is about 851.1685432049.

The spelling of 616661301 in words is "six hundred sixteen million, six hundred sixty-one thousand, three hundred one".