616263855 has 16 divisors (see below), whose sum is σ = 1044023904. Its totient is φ = 309340160.

The previous prime is 616263847. The next prime is 616263877. The reversal of 616263855 is 558362616.

It is a happy number.

It is not a de Polignac number, because 616263855 - 2³ = 616263847 is a prime.

It is a super-2 number, since 2×616263855² = 759562277958922050, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1208106 + ... + 1208615.

It is an arithmetic number, because the mean of its divisors is an integer number (65251494).

Almost surely, 2^616263855 is an apocalyptic number.

616263855 is a deficient number, since it is larger than the sum of its proper divisors (427760049).

616263855 is a wasteful number, since it uses less digits than its factorization.

616263855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416746.

The product of its digits is 259200, while the sum is 42.

The square root of 616263855 is about 24824.6622333517. The cubic root of 616263855 is about 850.9856409448.

The spelling of 616263855 in words is "six hundred sixteen million, two hundred sixty-three thousand, eight hundred fifty-five".