616265261642 has 16 divisors (see below), whose sum is σ = 928083793032. Its totient is φ = 306904227840.

The previous prime is 616265261539. The next prime is 616265261657. The reversal of 616265261642 is 246162562616.

It can be written as a sum of positive squares in 4 ways, for example, as 599771253601 + 16494008041 = 774449^2 + 128429^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5907092 + ... + 6010512.

Almost surely, 2^616265261642 is an apocalyptic number.

616265261642 is a deficient number, since it is larger than the sum of its proper divisors (311818531390).

616265261642 is a wasteful number, since it uses less digits than its factorization.

616265261642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115273.

The product of its digits is 1244160, while the sum is 47.

The spelling of 616265261642 in words is "six hundred sixteen billion, two hundred sixty-five million, two hundred sixty-one thousand, six hundred forty-two".