616742105026 has 4 divisors (see below), whose sum is σ = 925113157542. Its totient is φ = 308371052512.

The previous prime is 616742105011. The next prime is 616742105041. The reversal of 616742105026 is 620501247616.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (616742105011) and next prime (616742105041).

It can be written as a sum of positive squares in only one way, i.e., 537472265625 + 79269839401 = 733125^2 + 281549^2 .

It is a super-2 number, since 2×616742105026² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 616742105026.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154185526255 + ... + 154185526258.

Almost surely, 2^616742105026 is an apocalyptic number.

616742105026 is a deficient number, since it is larger than the sum of its proper divisors (308371052516).

616742105026 is a wasteful number, since it uses less digits than its factorization.

616742105026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308371052515.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 616742105026 in words is "six hundred sixteen billion, seven hundred forty-two million, one hundred five thousand, twenty-six".