616161276 has 48 divisors (see below), whose sum is σ = 1634617600. Its totient is φ = 200609136.

The previous prime is 616161263. The next prime is 616161313. The reversal of 616161276 is 672161616.

616161276 is a `hidden beast` number, since 616 + 16 + 1 + 27 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 616161276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61696 + ... + 70983.

Almost surely, 2^616161276 is an apocalyptic number.

It is an amenable number.

616161276 is an abundant number, since it is smaller than the sum of its proper divisors (1018456324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616161276 is a wasteful number, since it uses less digits than its factorization.

616161276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132735 (or 132727 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 616161276 is about 24822.5960769618. The cubic root of 616161276 is about 850.9384219389.

The spelling of 616161276 in words is "six hundred sixteen million, one hundred sixty-one thousand, two hundred seventy-six".