616557201 has 32 divisors (see below), whose sum is σ = 942480000. Its totient is φ = 355373568.

The previous prime is 616557199. The next prime is 616557203. The reversal of 616557201 is 102755616.

It is an interprime number because it is at equal distance from previous prime (616557199) and next prime (616557203).

It is not a de Polignac number, because 616557201 - 2¹ = 616557199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616557203) 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 31 ways as a sum of consecutive naturals, for example, 61275 + ... + 70623.

It is an arithmetic number, because the mean of its divisors is an integer number (29452500).

Almost surely, 2^616557201 is an apocalyptic number.

It is an amenable number.

616557201 is a deficient number, since it is larger than the sum of its proper divisors (325922799).

616557201 is a wasteful number, since it uses less digits than its factorization.

616557201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9473.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 616557201 is about 24830.5698887480. The cubic root of 616557201 is about 851.1206446088.

The spelling of 616557201 in words is "six hundred sixteen million, five hundred fifty-seven thousand, two hundred one".